gcc/ChangeLog

   1 2006-04-01  Joseph S. Myers  <joseph@codesourcery.com>
   2
   3         * dwarf2.h (DW64_CIE_ID): Define.
   4         * dwarf2out.c (DWARF_CIE_ID): Define.
   5         (output_call_frame_info): Output 0xffffffff before standard 8-byte
   6         length header.  Use DWARF_CIE_ID.
   7         (value_format): Use DW_FORM_data4 or DW_FORM_data8 for
   8         dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.
   9
  10 2006-03-31  Kaz Kojima  <kkojima@gcc.gnu.org>
  11
  12         * config/sh/linux-atomic.asm: New file.
  13         * config/sh/t-linux (LIB2FUNCS_EXTRA): Add linux-atomic.asm.
  14
  15 2006-03-31  DJ Delorie  <dj@redhat.com>
  16
  17         * config/m32c/cond.md: Set condition flags properly throughout.
  18         * config/m32c/minmax.md: Likewise.
  19         * config/m32c/prologue.md: Likewise.
  20         * config/m32c/bitops.md: Likewise.
  21         * config/m32c/muldiv.md: Likewise.
  22         * config/m32c/mov.md: Likewise.
  23         * config/m32c/addsub.md: Likewise.
  24         * config/m32c/m32c.md: Likewise.
  25         * config/m32c/jump.md: Likewise.
  26         * config/m32c/shift.md: Likewise.
  27
  28         * config/m32c/cond.md (cmp<mode>): Call m32c_output_compare to
  29         conditionally output the pattern for this.
  30         * config/m32c/m32c.c (flags_needed_for_conditional): New.
  31         (m32c_compare_redundant): New.
  32         (m32c_output_compare): New.
  33         * config/m32c/m32c-protos.h (m32c_output_compare): New.
  34
  35         * config/m32c/m32c.c (m32c_prepare_shift): Fix logic to clobber
  36         dest, not src.  Allow other 4-byte modes.
  37
  38 2006-03-30  Denis Chertykov  <denisc@overta.ru>
  39
  40         * doc/md.texi: Refer to avr/constraints.md instead of
  41         avr/avr.h.
  42
  43 2006-03-30  Roger Sayle  <roger@eyesopen.com>
  44
  45         * expr.c (emit_group_store): Make BYTEPOS a HOST_WIDE_INT to
  46         signed vs. unsigned comparison failures on some hosts.
  47
  48 2006-03-31  Alan Modra  <amodra@bigpond.net.au>
  49
  50         PR target/26459
  51         * config/rs6000/rs6000.h (CANNOT_CHANGE_MODE_CLASS): Limit 2003-12-08
  52         change to FLOAT_REGS.
  53
  54         * config/rs6000/rs6000.c (rs6000_explicit_options): Add ieee.
  55         (rs6000_override_options): Use it.
  56         (rs6000_handle_option): Set it.  Set rs6000_explicit_options.abi
  57         only for -mabi=spe/no-spe and -mabi=altivec.
  58
  59 2006-03-30  Geoffrey Keating  <geoffk@apple.com>
  60
  61         * config/darwin.h (LINK_COMMAND_SPEC): Don't try to protect %S with
  62         !Zdynamiclib.
  63
  64 2006-03-30  Carlos O'Donell  <carlos@codesourcery.com>
  65
  66         * Makefile.in: Rename docdir to gcc_docdir.
  67
  68 2006-03-30  Roger Sayle  <roger@eyesopen.com>
  69
  70         PR target/17959
  71         * expr.c (emit_group_store):  Optimize group stores into a pseudo
  72         register by using a paradoxical subreg to initialize the destination
  73         if the first or last member of the group specifies a "low part".
  74
  75 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
  76
  77         PR target/26734
  78         * rtl.def (DEPS_LIST): Change type of the second operand to 'int'.
  79         * target.h (struct gcc_target.speculate_insn): Change type of the
  80         second parameter to 'int'.
  81         * lists.c (alloc_DEPS_LIST): Change signature.  Update reference to
  82         the second operand of the DEPS_LIST.
  83         (copy_DEPS_LIST_list): Update reference to the second operand of the
  84         DEPS_LIST.
  85         * rtl.h (alloc_DEPS_LIST): Update signature.
  86         * sched-int.h (ds_t): Change typedef to 'int'.
  87         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
  88
  89 2006-03-30  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
  90
  91         * haifa-sched.c (try_ready): Change condition to restore
  92         non-speculative pattern of the instruction.
  93         (process_insn_depend_be_in_spec): Code to keep probability of the
  94         speculative dependence non-decreasing.
  95
  96 2006-03-30  Jie Zhang  <jie.zhang@analog.com>
  97
  98         * config/bfin/bfin.c (single_move_for_strmov): Renamed to...
  99         (single_move_for_movmem): ... this. Also change all uses.
 100         (bfin_expand_strmov): Renamed to...
 101         (bfin_expand_movmem): ... this. Also change all uses.
 102         * config/bfin/bfin.md (movstrsi): Renamed to...
 103         (movstrsi): ...this.
 104
 105 2006-03-30  Paolo Bonzini  <bonzini@gnu.org>
 106
 107         PR tree-optimization/26830
 108
 109         * tree-ssa-copy.c (copy_prop_visit_assignment): Do not check loop depth.
 110         (copy_prop_visit_stmt): Remove write-only variable ann.
 111         (init_copy_prop): Check variable loop depth here.  Do not simulate
 112         memory-tag and virtual operand PHIs except for store copy prop.
 113
 114 2006-03-30  Richard Guenther  <rguenther@suse.de>
 115
 116         * config/i386/i386.c: Remove builtins for SSE2 ABI intrinsic
 117         variants with double arguments.
 118
 119 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
 120
 121         * genpreds.c (write_tm_constrs_h): Delete variable p.
 122         * genconditions.c (write_header): Add tm-constrs.h to included
 123         headers.
 124         * genpeep.c (main): Add toplev.h to included headers.
 125         * Makefile.in (build/gencondmd.o): Add tm-constrs.h dependency.
 126         (build/genpeep.o): Add toplev.h dependency.
 127         * config/rs6000/constraints.md: Add "W" constraint.
 128
 129 2006-03-29  Roger Sayle  <roger@eyesopen.com>
 130
 131         * stor-layout.c (mode_for_size_tree): Remove restiction on type
 132         sizes by correctly testing whether the size fits a host integer.
 133         (initialize_sizetypes): Use set_min_and_max_values_for_integral_type
 134         to correctly set TYPE_MIN_VALUE and TYPE_MAX_VALUE to the full
 135         SImode range for the default sizetype and bitsizetype.
 136
 137 2006-03-29  Roger Sayle  <roger@eyesopen.com>
 138
 139         * convert.c (convert_to_pointer): Preserve the TREE_OVERFLOW
 140         and TREE_CONSTANT_OVERFLOW bits of the argument.  Return
 141         quickly if the argument is already of the correct type.
 142         Call fold_build1 instead of build1.  Tidy up blank lines.
 143
 144 2006-03-29  David Edelsohn  <edelsohn@gnu.org>
 145
 146         * genemit.c (main): Add tm-constrs.h to included headers.
 147         * genoutput.c (output_prologue): Add tm-constrs.h to included headers.
 148         * genpeep.c (main): Add tm-constrs.h to included headers.
 149         * genpreds.c (write_satisfies_constraint_fns): Rename to ...
 150         (write_tm_constrs_h): this and write complete file.
 151         (write_tm_preds_h): Do not emit satisfies_constraint fns.
 152         (write_insn_preds_c): Add tm-constrs.h to included headers.
 153         (gen_constrs): New variable.
 154         (parse_option): Parse "-c".
 155         (main): Invoke write_tm_constrs_h.
 156         * genrecog.c (write_header): Add tm-constrs.h to included headers.
 157         * Makefile.in (STAGECOPYSTUFF): Add tm-constrs.h.
 158         (object_out_file): Add tm-constrs.h dependency.
 159         (insn-emit.o): Same.
 160         (insn-output.o): Same.
 161         (insn-peep.o): Same.
 162         (insn-preds.o): Same.
 163         (insn-recog.o): Same.
 164         (tm-constsr.h): New target.
 165         (s-constrs-h): New target.
 166
 167         * config/rs6000/constraints.md: New file.
 168         * config/rs6000/rs6000.c: Include tm-constrs.h.
 169         (num_insn_constant_wide): Convert to satisfies_constraint.
 170         (rs6000_rtx_costs): Convert to satisfies_constraint.
 171         * config/rs6000/rs6000.h (REG_CLASS_FROM_LETTER): Delete.
 172         (CONST_OK_FOR_LETTER_P): Delete.
 173         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
 174         (EXTRA_CONSTRAINT): Delete.
 175         (EXTRA_MEMORY_CONSTRAINT): Delete.
 176         (EXTRA_ADDRESS_CONSTRAINT): Delete.
 177         * config/rs6000/predicates.md: Convert to satisfies_constraint.
 178         * config/rs6000/rs6000.md: Include constraints.md.  Convert to
 179         satisfies_constraint.
 180
 181         * config/i386/i386.c: Include tm-constrs.h.
 182
 183 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
 184
 185         * tree-loop-linear.c (compute_data_dependences_for_loop): Adjust calls.
 186         * tree-data-ref.c (find_data_references_in_loop,
 187         compute_data_dependences_for_loop): Use pointers to VEC.
 188         (analyze_all_data_dependences): Adjust calls.
 189         * tree-data-ref.h (find_data_references_in_loop,
 190         compute_data_dependences_for_loop): Adjust declarations.
 191         * tree-vect-analyze.c (vect_analyze_data_refs): Adjust call to
 192         compute_data_dependences_for_loop.
 193
 194 2006-03-29  Paul Brook  <paul@codesourcery.com>
 195
 196         * config/arm/vfp.md (movsf_vfp): Disparage w<->r alternatives.
 197         (movdf_vfp): Ditto.
 198
 199 2006-03-29  Sebastian Pop  <pop@cri.ensmp.fr>
 200
 201         PR tree-optimization/26859
 202         * tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
 203         division by zero.
 204         (convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
 205         for the step after fold_convert.
 206
 207 2006-03-29  Paul Brook  <paul@codesourcery.com>
 208
 209         * reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
 210         (inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
 211
 212 2006-03-29  Paul Brook  <paul@codesourcery.com>
 213
 214         PR middle-end/23623
 215         * targhooks.c (default_narrow_bitfield): New fuction.
 216         * targhooks.h (default_narrow_bitfield): add prototype.
 217         * target.h (gcc_target): Add narrow_volatile_bitfield.
 218         * target-def.h (TARGET_NARROW_VOLATILE_BITFIELD): Define.
 219         * stor-layout.c (get_best_mode): Use targetm.narrow_volatile_bitfield.
 220         * doc/tm.texi: Document TARGET_NARROW_VOLATILE_BITFIELDS.
 221         * config/arm/arm.c (TARGET_NARROW_VOLATILE_BITFIELD): Define.
 222
 223 2006-03-29  Andreas Krebbel  <krebbel1@de.ibm.com>
 224
 225         * config.gcc (s390-*-linux-*, s390x-*-linux*): Add t-dfprules to
 226         tmake_file.
 227         * config/s390/s390.c (S390_scalar_mode_supported_p): New function.
 228         (NR_C_MODES): Add TDmode, DDmode and SDmode.
 229         (s390_output_pool_entry, ): Accept MODE_DECIMAL_FLOAT.
 230         (s390_hard_regno_mode_ok): Disallow TDmode in integer regs.
 231         (s390_function_arg_float): Allow SDmode and DDmode values to be
 232         passed in floating point registers.
 233         (s390_function_arg_integer, s390_function_value): Replace MODE_FLOAT
 234         check with SCALAR_FLOAT_MODE_P.
 235         (TARGET_SCALAR_MODE_SUPPORTED_P): Define target macro.
 236
 237 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
 238
 239         PR tree-optimization/25985
 240         * tree-ssa-loop-niter.c (number_of_iterations_le,
 241         number_of_iterations_ne): Make comments more precise.
 242         (number_of_iterations_cond): Add only_exit argument.  Use the
 243         fact that signed variables do not overflow only when only_exit
 244         is true.
 245         (loop_only_exit_p): New.
 246         (number_of_iterations_exit): Pass result of loop_only_exit_p to
 247         number_of_iterations_cond.
 248
 249 2006-03-28  Zdenek Dvorak <dvorakz@suse.cz>
 250
 251         PR tree-optimization/26643
 252         * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Do not handle
 253         bit_field_refs.
 254
 255 2006-03-28  Kaz Kojima  <kkojima@gcc.gnu.org>
 256
 257         * config/sh/sh.md (udivsi3_i4_int): Clobber MACH_REG and MACL_REG.
 258         (divsi3_i4_int): Likewise.
 259
 260 2006-03-28  Roger Sayle   <roger@eyesopen.com>
 261
 262         * expr.c (emit_group_store): Only create a new pseudo reg if the
 263         quantity it needs to hold isn't already a suitable pseudo.
 264
 265 2006-03-28  Jeff Law  <law@redhat.com>
 266
 267         * timevar.def (TV_TREE_PHI_CPROP): New timevar.
 268         * tree-ssa-dom.c (pass_phi_only_cprop): Use it.
 269
 270 2006-03-28  Roger Sayle  <roger@eyesopen.com>
 271
 272         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
 273         the equivalent ~X & Y, and the symmetry related transformations.
 274         (fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
 275         ~X & Y, and symmetry related transforms.
 276
 277 2006-03-28  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 278
 279         Revert my 2006-03-27 patches.
 280
 281 2006-03-28  Roger Sayle  <roger@eyesopen.com>
 282
 283         * fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
 284         ~(T1)X, when T1 and T2 are integer types of the same precision
 285         and (T2)X isn't an extension.
 286
 287 2006-03-28  Jeff Law  <law@redhat.com>
 288
 289         PR tree-optimization/26796
 290         * tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
 291         need EH edge cleanups rather than purging them immediately.
 292         (eliminate_degenerate_phis): Handle queued EH cleanups.
 293
 294 2006-03-28  Daniel Berlin  <dberlin@dberlin.org>
 295
 296         * tree-ssa-alias.c (create_sft): Initially inherit TREE_ADDRESSABLE
 297         from parent_var.
 298
 299 2006-03-27  Roger Sayle  <roger@eyesopen.com>
 300
 301         PR middle-end/22524
 302         * fold-const.c (fold_binary) <MINUS_EXPR>: Call fold_convert to
 303         cast BIT_NOT_EXPR operand to the correct type.
 304
 305 2006-03-27  Sebastian Pop  <pop@cri.ensmp.fr>
 306
 307         * tree-loop-linear.c: Don't include varray.h.
 308         (gather_interchange_stats, try_interchange_loops,
 309         linear_transform_loops): Use VEC instead of VARRAY.
 310         * lambda-mat.c: Don't include varray.h.
 311         * tree-chrec.c: Same.
 312         * lambda-trans.c: Same.
 313         * tree-vectorizer.c (new_loop_vec_info, destroy_loop_vec_info): Use
 314         VEC instead of VARRAY.
 315         * tree-vectorizer.h: Idem.
 316         * tree-data-ref.c (dump_data_references,
 317         dump_data_dependence_relations, dump_dist_dir_vectors, dump_ddrs,
 318         initialize_data_dependence_relation, finalize_ddr_dependent,
 319         compute_all_dependences, find_data_references_in_loop,
 320         compute_data_dependences_for_loop, analyze_all_data_dependences,
 321         free_dependence_relation, free_dependence_relations,
 322         free_data_refs): Idem.
 323         * tree-data-ref.h (data_reference_p, subscript_p): New.
 324         (data_dependence_relation, DDR_SUBSCRIPT, DDR_NUM_SUBSCRIPTS): Use
 325         VEC instead of VARRAY.
 326         (DDR_SUBSCRIPTS_VECTOR_INIT): Removed.
 327         (find_data_references_in_loop, compute_data_dependences_for_loop,
 328         dump_ddrs, dump_dist_dir_vectors, dump_data_references,
 329         dump_data_dependence_relations, free_dependence_relations,
 330         free_data_refs): Adjust declaration.
 331         (lambda_transform_legal_p): Move declaration here...
 332         * tree-vect-analyze.c (vect_analyze_data_ref_dependences,
 333         vect_compute_data_refs_alignment, vect_verify_datarefs_alignment,
 334         vect_enhance_data_refs_alignment, vect_analyze_data_ref_accesses,
 335         vect_analyze_data_refs): Use VEC instead of VARRAY.
 336         * lambda.h (lambda_transform_legal_p): ...from here.
 337         * lambda-code.c (lambda_transform_legal_p): Use VEC instead of VARRAY.
 338         * tree-vect-transform.c (vect_update_inits_of_drs): Idem.
 339         * Makefile.in (tree-loop-linear.o, lambda-mat.o, lambda-trans.o,
 340         tree-chrec.o): Don't depend on VARRAY_H.
 341
 342 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 343
 344         * rtl.def (Copyright): Update date.
 345         (DEPS_LIST): Change type of the second operand to 'int'.
 346         * target.h (Copyright): Update date.
 347         (struct gcc_target.speculate_insn): Change type of the second parameter
 348         to 'int'.
 349         * lists.c (Copyright): Update date.
 350         (alloc_DEPS_LIST): Change signature.  Update reference to the second
 351         operand of the DEPS_LIST.
 352         (copy_DEPS_LIST_list): Update reference to the second operand of the
 353         DEPS_LIST.
 354         * rtl.h (Copyright): Update date.
 355         (alloc_DEPS_LIST): Update signature.
 356         * sched-int.h (Copyright): Update date.
 357         (ds_t): Change typedef to 'int'.
 358         (DEP_STATUS, BITS_PER_DEP_STATUS): Update.
 359
 360 2006-03-27  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 361
 362         * haifa-sched.c (Copyright): Update date.
 363         (try_ready): Change condition to restore non-speculative pattern
 364         of the instruction.
 365         (process_insn_depend_be_in_spec): Code to keep probability of the
 366         speculative dependence non-decreasing.
 367
 368 2006-03-27  Bernd Schmidt  <bernd.schmidt@analog.com>
 369
 370         * regrename.c (replace_oldest_value_addr): Initialize a variable to
 371         shut up the compiler.
 372
 373 2006-03-27  J"orn Rennecke <joern.rennecke@st.com>
 374
 375         * config/sh/t-sh ($(T)libic_invalidate_array_4-100.a): Fix rule
 376         to use lib prefix for target.
 377         ($(T)libic_invalidate_array_4-200.a): Likewise.
 378         ($(T)libic_invalidate_array_4a.a): Likewise.
 379
 380 2006-03-27  Andrew Stubbs <andrew.stubbs@st.com>
 381             J"orn Rennecke <joern.rennecke@st.com>
 382
 383         * superh.opt: New file.
 384         * sh.c (boardtype, osruntime): Remove.
 385         * superh.h (SUBTARGET_OPTIONS): Remove.
 386         * config.gcc (sh*-superh-elf): Add sh/superh.opt to extra_options.
 387
 388         * config.gcc (sh*-*-*): Don't use c-c ranges for tr.  Quote sed
 389         arguments with ^ and/or [].
 390
 391         * config.gcc (sh-*-*): Add quoting to account for quirk of
 392         Solaris /bin/sh.
 393         Replace == with = in enable_incomplete_targets test.
 394
 395         * config/sh/superh.h (SUBTARGET_LINK_SPEC): Replace LITTLE_ENDIAN_BIT
 396         with MASK_LITTLE_ENDIAN.
 397
 398         * config.gcc (sh*-superh-elf): Add sh/superh.h to tm_file.
 399         * config/sh/sh.opt: Added to some comments.
 400         * config/sh/superh.h: Removed some chaff.
 401
 402         * config/sh/sh.opt: Add m4-[1234]00* options.
 403         * config/sh/sh.c (sh_handle_option): Likewise.
 404         * config/sh/t-sh (IC_EXTRA_PARTS, EXTRA_MULTILIB_PARTS): Define.
 405         (ic_invalidate_array_4-100.o): New rule.
 406         ($(T)libic_invalidate_array_4-100.a): Likewise.
 407         (ic_invalidate_array_4-200.o): Likewise.
 408         ($(T)libic_invalidate_array_4-200.a): Likewise.
 409         (ic_invalidate_array_4a.o): Likewise.
 410         ($(T)libic_invalidate_array_4a.a): Likewise.
 411         * config/sh/t-elf (EXTRA_MULTILIB_PARTS): Add IC_EXTRA_PARTS.
 412         * config/sh/embed-elf.h (LIBGCC_SPEC): Add clauses for m4-100*,
 413         m4-200*, and m4a*.
 414         * config/sh/crt1.asm: Merged in profiling code.
 415         * config/sh/superh.h (STARTFILE_SPEC): Override.
 416         * config/sh/t-superh: Override EXTRA_MULTILIB_PARTS.
 417         Add rules for $(T)crt1-mmu.o, $(T)gcrt1-mmu.o and $(T)gcrt1.o.
 418         * config.gcc (sh*-superh-elf): Add t-superh to tmake_file.
 419
 420         * t-sh (MULTILIB_MATCHES): Add sh4-[1245]00* variants.
 421         * config/sh/t-superh: Removed now-redundant MULTILIB_OPTIONS /
 422         MULTILIB_DIRNAMES / MULTILIB_MATCHES settings.
 423
 424         * sh.opt (mpretend-cmove): New option.
 425         * sh.h (OPERRIDE_OPTIONS): Switch it off if not TARGET_SH1.
 426         * sh.md (movsicc_t_false, movsicc_t_tru): New patterns.
 427         (movsicc): Add TARGET_PRETEND_CMOVE code.
 428
 429 2006-03-27  Andreas Krebbel  <krebbel1@de.ibm.com>
 430
 431         * config/s390/s390-protos.h (s390_hard_regno_mode_ok,
 432         s390_class_max_nregs): New function prototypes.
 433         * config/s390/s390.c (REGNO_PAIR_OK): New macro.
 434         (s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
 435         * config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
 436         CLASS_MAX_NREGS): Macro bodies replaced by function calls.
 437
 438 2006-03-26  Geoffrey Keating  <geoffk@apple.com>
 439
 440         * dwarf2out.c (add_location_or_const_value_attribute): Call
 441         tree_add_const_value_attribute if nothing else works.
 442         (reference_to_unused): New.
 443         (rtl_for_decl_init): Use reference_to_unused to decide whether
 444         to output an initializer.
 445
 446 2006-03-27  Alan Modra  <amodra@bigpond.net.au>
 447
 448         PR target/26459
 449         * config/rs6000/rs6000.md (DF reg move peephole): Prevent
 450         peephole removing spe frob_di_df_2.
 451
 452 2006-03-26  Sebastian Pop  <pop@cri.ensmp.fr>
 453
 454         * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
 455         (subscript_dependence_tester_1): Declared.
 456         (print_dir_vectors, print_dist_vectors): New.
 457         (debug_data_dependence_relation): New.
 458         (dump_data_dependence_relation): Print more details.
 459         (initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
 460         (analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
 461         (save_dist_v, save_dir_v, add_outer_distances,
 462         build_classic_dist_vector_1): New.
 463         (build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
 464         Don't test for lambda_vector_lexico_pos.
 465         (same_access_functions, add_multivariate_self_dist,
 466         add_other_self_distances, dir_from_dist): New.
 467         (build_classic_dir_vector): Replace implementation almost identical to
 468         build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
 469         dir_from_dist.
 470         (subscript_dependence_tester_1): New.
 471         (subscript_dependence_tester): Handle the lexicographically negative
 472         distance vectors by recomputing the dependence relation.
 473         (compute_affine_dependence): Remove parameter loop_nest_depth.
 474         (compute_self_dependence): Don't call compute_subscript_distance.
 475         (compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
 476         Add a parameter for the loop_nest.
 477         (find_loop_nest_1, find_loop_nest): New.
 478         (compute_data_dependences_for_loop): Compute the loop nest, and give
 479         up if the nest is not well formed.
 480         * tree-data-ref.h (loop_p): New.
 481         (struct data_dependence_relation): Replace size_vect field with
 482         loop_nest, a vec of loops.
 483         (DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
 484         (DDR_LOOP_NEST): New.
 485         (print_dir_vectors, print_dist_vectors,
 486         debug_data_dependence_relation): Declared.
 487         (index_in_loop_nest): New.
 488         * tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
 489         DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
 490         distance.
 491
 492 2006-03-25  Adam Nemet  <anemet@caviumnetworks.com>
 493
 494         * simplify-rtx.c (simplify_relational_operation): Call
 495         simplify_relational_operation_1 even if mode is VOIDmode.
 496
 497 2006-03-25  Daniel Berlin  <dberlin@dberlin.org>
 498
 499         PR tree-optimization/26804
 500         * tree.h (DECL_CALL_CLOBBERED): New macro.
 501         (tree_decl_common): Add call_clobbered_flag.
 502         * tree-flow-inline.h (is_call_clobbered): Use DECL_CALL_CLOBBERED.
 503         (mark_call_clobbered): Set DECL_CALL_CLOBBERED.
 504         (clear_call_clobbered): Clear DECL_CALL_CLOBBERED.
 505         (mark_non_addressable): Ditto.
 506         * tree-ssa.c (verify_call_clobbered): New function.
 507         (verify_alias_info): Use it.
 508         * tree-pass.h (pass_reset_cc_flags): New prototype.
 509         * tree-ssa-alias.c (pass_reset_cc_flags): New structure.
 510         (reset_cc_flags): New function.
 511         * passes.c (init_optimization_passes): Call reset_cc_flags after
 512         initializing referenced_vars.
 513
 514 2006-03-25  Uros Bizjak  <uros@kss-loka.si>
 515             Roger Sayle  <roger@eyesopen.com>
 516
 517         PR middle-end/26717
 518         * fold-const.c (fold_binary) [RDIV_EXPR]: Do not optimize A / A
 519         to 1.0 for non-real operands. Implement A / A optimization for
 520         complex operands.
 521
 522 2006-03-25  H.J. Lu  <hongjiu.lu@intel.com>
 523
 524         * config/i386/i386.c (size_cost): Correct the comment for
 525         cost of storing fp registers.
 526         (i386_cost): Likewise.
 527         (i486_cost): Likewise.
 528         (pentium_cost): Likewise.
 529         (pentiumpro_cost): Likewise.
 530         (k6_cost): Likewise.
 531         (athlon_cost): Likewise.
 532         (k8_cost): Likewise.
 533         (pentium4_cost): Likewise.
 534         (nocona_cost): Likewise.
 535         (generic64_cost): Likewise.
 536         (generic32_cost): Likewise.
 537
 538 2006-03-24  Denis Chertykov  <denisc@overta.ru>
 539
 540         * config/avr/avr-protos.h (extra_constraint): Delete.
 541         (extra_constraint_Q): New declaration.
 542         * config/avr/constraints.md: New file.
 543         * config/avr/avr.md: Include it.
 544         (REG_X, REG_Y, REG_Z, REG_W): New constants.
 545         (TMP_REGNO, ZERO_REGNO): Likewise.
 546         (UNSPEC_STRLEN, UNSPEC_INDEX_JMP): Likewise.
 547         * config/avr/avr.c (avr_reg_class_from_letter): Delete.
 548         (extra_constraint): Delete.
 549         (extra_constraint_Q): Test for memory constraint 'Q'.
 550         * config/avr/avr.h (REG_X,REG_Y,REG_Z,REG_W): Delete.
 551         (REG_CLASS_FROM_LETTER): Delete.
 552         (CONST_OK_FOR_LETTER_P): Delete.
 553         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
 554         (EXTRA_CONSTRAINT): Delete.
 555         (TMP_REGNO): Delete.
 556         (ZERO_REGNO): Delete.
 557
 558 2006-03-24  Jeff Law  <law@redhat.com>
 559
 560         * tree-ssa-dom.c (propagate_rhs_into_lhs): Don't call update_stmt
 561         directly.  Call mark_new_vars_to_rename slightly earlier.
 562
 563 2006-03-24  Geoffrey Keating  <geoffk@apple.com>
 564
 565         * dwarf2out.c (is_c_family): Understand new DWARF3 language types.
 566         (is_cxx): Likewise.
 567         (gen_compile_unit_die): Use new language types for Objective-C and
 568         Objective-C++.
 569         (dwarf2out_decl): Use is_cxx rather than testing explicitly against
 570         DW_LANG_C_plus_plus.
 571
 572         PR 26793
 573         * config/t-darwin (crt3.o): Work around bug 26840.
 574         * config/darwin-crt3.c: Rewrite.
 575         * config/darwin.h (STARTFILE_SPEC): Don't use -l for crt3.o.
 576
 577 2006-03-24  Carlos O'Donell  <carlos@codesourcery.com>
 578
 579         * doc/invoke.texi: Document -femit-class-debug-always
 580         * common.opt: Add -femit-class-debug-always.
 581
 582 2006-03-24  Andreas Krebbel  <krebbel1@de.ibm.com>
 583
 584         * config/s390/s390.c (s390_decompose_address): Allow SImode for
 585         index and base register.
 586         (s390_expand_plug_operand, legitimate_address_p, preferred_la_operand_p,
 587         print_operand_address, print_operand): Replaced REG_OK_FOR_BASE_STRICT_P
 588         with REGNO_OK_FOR_BASE_P and REG_OK_FOR_INDEX_STRICT_P with
 589         REGNO_OK_FOR_INDEX_P.
 590         * config/s390/s390.h (REGNO_OK_FOR_INDEX_P): Replaced check with
 591         ADDR_REGNO_P.
 592         (REG_OK_FOR_INDEX_NONSTRICT_P, REG_OK_FOR_BASE_NONSTRICT_P,
 593         REG_OK_FOR_INDEX_STRICT_P, REG_OK_FOR_BASE_STRICT_P, REG_OK_FOR_INDEX_P,
 594         REG_OK_FOR_BASE_P): Definitions removed.
 595
 596 2006-03-24  Jakub Jelinek  <jakub@redhat.com>
 597
 598         PR middle-end/26611
 599         * gimplify.c (gimplify_bind_expr): Only call omp_add_variable on
 600         non-global variables that don't have DECL_SEEN_IN_BIND_EXPR_P bit
 601         set yet or weren't marked as local yet.
 602
 603 2006-03-24  Bernd Schmidt  <bernd.schmidt@analog.com>
 604
 605         * regrename.c (scan_rtx_address): Initialize a variable to shut up
 606         the compiler.
 607
 608 2006-03-24  Eric Botcazou  <ebotcazou@adacore.com>
 609
 610         * config/rs6000/rs6000-protos.h (rs6000_offsettable_memref_p): Declare.
 611         (rs6000_legitimate_small_data_p): Delete.
 612         * config/rs6000/rs6000.c (rs6000_offsettable_memref_p): New predicate.
 613         (rs6000_legitimate_small_data_p): Rename to legitimate_small_data_p
 614         and make static.  Add forward declaration.  Update uses.
 615         (rs6000_split_multireg_move): Use rs6000_offsettable_memref_p instead
 616         of offsettable_memref_p.
 617         * config/rs6000/rs6000.md (movdf_hardfloat32): Revert 2005-08-23 fix.
 618         Use rs6000_offsettable_memref_p instead of a less accurate predicate.
 619
 620 2006-03-24  Jeff Law  <law@redhat.com>
 621
 622         * tree-ssa-dom.c (propagate_rhs_into_lhs): Temporarily work
 623         around bug in immediate-use iterator.
 624
 625 2006-03-24  Alan Modra  <amodra@bigpond.net.au>
 626
 627         PR target/26607
 628         * config/rs6000/darwin-ldouble.c: Don't compile when __NO_FPRS__
 629         or __LITTLE_ENDIAN__.
 630
 631 2006-03-23  J"orn Rennecke <joern.rennecke@st.com>
 632
 633         * config/sh/divtab-sh4.c, config/sh/divcost-analysis: New files.
 634         * config/sh/lib1funcs.asm (div_table): Add !__SH5__ variant.
 635         * config/sh/t-sh (LIB1ASMFUNCS): Add _div_table.
 636         * config/sh/sh.opt (mdiv=): Amend description.
 637         * config/sh/sh.h (TARGET_DIVIDE_CALL_DIV1): New macro.
 638         (TARGET_DIVIDE_CALL_FP, TARGET_DIVIDE_CALL_TABLE): Likewise.
 639         (sh_divide_strategy_e): Add new members SH_DIV_CALL_DIV1,
 640         SH_DIV_CALL_FP, SH_DIV_CALL_TABLE and SH_DIV_INTRINSIC.
 641         (OVERRIDE_OPTIONS): Also process sh_div_str for TARGET_SH1.
 642         Calculate sh_divsi3_libfunc using TARGET_DIVIDE_* macros.
 643         * config/sh/sh.md (udivsi3_i4_int, divsi3_i4_int): New patterns.
 644         (udivsi3, divsi3): Use them.  Check TARGET_DIVIDE_CALL_TABLE /
 645         TARGET_DIVIDE_CALL_FP.
 646
 647 2006-03-23  Maxim Kuvyrkov  <mkuvyrkov@ispras.ru>
 648
 649         * haifa-sched.c (choose_ready): Fix type of the local variable.
 650         Move local variables.  Add comment.
 651         (check_reg_live): Change signature.  Make callable from debugger.
 652         * sched-int.h (check_reg_live): Update signature.
 653         * sched-ebb.c (check_reg_live): Update parameters.
 654         * sched-rgn.c (check_reg_live): Ditto.
 655         (region_head_or_leaf_p): Check pointer before dereferencing.
 656         * config/ia64/ia64.c (ia64_set_sched_flags): Disable data speculation
 657         before reload on optimization levels below 1.
 658
 659 2006-03-23  Richard Henderson  <rth@redhat.com>
 660
 661         * config/alpha/alpha.c (alpha_legitimate_constant_p): Reject
 662         tls symbols.
 663
 664         PR target/26347
 665         * config/alpha/predicates.md (local_symbolic_operand): Reject
 666         weak symbols.
 667
 668 2006-03-23  Andrew Pinski  <pinskia@physics.uc.edu>
 669
 670         PR tree-opt/26795
 671         * tree-ssa-pre.c (create_value_expr_from): Don't reject
 672         expressions which have overflowed constants.
 673
 674 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
 675
 676         * cse.c (cse_end_of_basic_block): Do not check for LOOP_END note.
 677
 678 2006-03-23  Zdenek Dvorak <dvorakz@suse.cz>
 679
 680         * cfgloopmanip.c (create_loop_notes): Removed.
 681         * final.c (final_scan_insn): Do not handle loop notes.
 682         * jump.c (squeeze_notes): Ditto.
 683         * cfglayout.c (skip_insns_after_block,
 684         duplicate_insn_chain): Ditto.
 685         * cfgcleanup.c (rest_of_handle_jump2): Do not call
 686         create_loop_notes.
 687         * cfgloop.h (create_loop_notes): Declaration removed.
 688
 689 2006-03-23  Richard Sandiford  <richard@codesourcery.com>
 690
 691         * varasm.c (output_constant_pool): Restore fnname and fndecl
 692         arguments.
 693         (assemble_start_function): Adjust call accordingly.
 694         (assemble_end_function): Likewise.
 695
 696 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 697
 698         PR mudflap/26790
 699         * tree-mudflap.c (mudflap_finish_file): Skip erroneous objects.
 700
 701         PR mudflap/26789
 702         * tree-mudflap.c (mf_xform_derefs_1): Return early on error_mark_node.
 703
 704 2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 705
 706         PR driver/22600
 707         * system.h (ICE_EXIT_CODE): New macro.
 708         * diagnostic.c (diagnostic_count_diagnostic): Exit with ICE_EXIT_CODE.
 709         (diagnostic_action_after_output): Likewise.
 710         * gcc.c (fatal_ice): New function.
 711         (execute): Use it instead of fatal.
 712         (fancy_abort): Likewise.
 713         * doc/invoke.texi (-pass-exit-codes): Document return code for ICEs.
 714
 715 2006-03-22  Jeff Law  <law@redhat.com>
 716
 717         * loop-unroll.c (analyze_iv_to_split_insn): Handle
 718         iv_analyze_result returning false.
 719
 720 2006-03-22  Jie Zhang  <jie.zhang@analog.com>
 721
 722         * config/bfin/bfin.h (ASM_FORMAT_PRIVATE_NAME): Remove.
 723
 724 2006-03-22  Richard Henderson  <rth@redhat.com>
 725
 726         PR middle-end/26084
 727         * except.c (duplicate_eh_regions_0): New.
 728         (duplicate_eh_region_1): Duplicate the children of the node as
 729         well as the node itself.  Link them up properly.
 730         (duplicate_eh_region_2): Merge into ...
 731         (duplicate_eh_regions): ... here.  Take copy_region argument, and
 732         copy only a sub-tree if asked.  Simplify copying and fixup.
 733         (eh_region_outer_p): New.
 734         * except.h (duplicate_eh_regions): Update decl.
 735         (eh_region_outer_p): Declare.
 736         * omp-low.c (lower_omp_single): Fix eh region placement wrt OMP_RETURN.
 737         (lower_omp_master): Likewise.
 738         (lower_omp_ordered): Likewise.
 739         * tree-cfg.c (struct move_stmt_d): Add new_label_map.
 740         (move_stmt_r): Use it to remap labels.  Handle recursion vs
 741         remap_decls_p properly.
 742         (move_block_to_fn): Pass in new_label_map.  Remap RESX_EXPR.
 743         (find_outermost_region_in_block): New.
 744         (new_label_mapper): New.
 745         (move_sese_region_to_fn): Copy eh information to the new function
 746         properly.
 747         * tree-inline.c (copy_cfg_body): Update for new duplicate_eh_regions
 748         argument.
 749         * tree-pretty-print.c (dump_generic_node): Dump RESX_EXPR region
 750         number.
 751
 752 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
 753
 754         * doc/md.texi (-mshared): Mention that -mshared code can be linked
 755         into shared libraries.
 756
 757 2006-03-22  Richard Sandiford  <richard@codesourcery.com>
 758
 759         * doc/md.texi: Refer to i386/constraints.md instead of
 760         i386/predicates.md.
 761         * config/i386/constraints.md: New file, extracted from...
 762         * config/i386/predicates.md: ...here.
 763         * config/i386/i386.md: Include constraints.md.
 764
 765 2006-03-21  Jason Merrill  <jason@redhat.com>
 766
 767         * builtins.c (expand_builtin_fork_or_exec): Fix pasto.
 768
 769         PR middle-end/20297
 770         * expr.c (init_block_move_fn): Force default visibility.
 771         (init_block_clear_fn): Likewise.
 772         * builtins.c (expand_builtin_fork_or_exec): Likewise.
 773         * targhooks.c (default_external_stack_protect_fail): Likewise.
 774
 775 2006-03-21  Richard Sandiford  <richard@codesourcery.com>
 776
 777         * config/mips/predicates.md (const_call_insn_operand): Allow direct
 778         calls to locally-defined functions if TARGET_ABSOLUTE_ABICALLS.
 779         * config/mips/mips.md (jal_macro): Test TARGET_ABSOLUTE_ABICALLS.
 780         Use TARGET_OLDABI instead of !TARGET_NEWABI.
 781         (loadgp): Use mips_current_loadgp_style.
 782         (loadgp_noshared): New pattern.
 783         (sibcall_internal): Use MIPS_CALL.
 784         (sibcall_value_internal): Likewise.
 785         (sibcall_value_multiple_internal): Likewise.
 786         (call_internal): Likewise.
 787         (call_value_internal): Likewise.
 788         (call_value_multiple_internal): Likewise.
 789         (call_split): Use MIPS_CALL and add an 'S' constraint.
 790         (call_value_split): Likewise.
 791         (call_value_multiple_split): Likewise.
 792         * config/mips/mips.opt (-mabicalls): Tweak docstring.
 793         (-mshared): New option.
 794         * config/mips/mips-protos.h (mips_loadgp_style): New enum.
 795         (mips_current_loadgp_style): Declare.
 796         * config/mips/mips.c (mips_classify_symbol): Avoid using
 797         SYMBOL_GOT_LOCAL if TARGET_ABSOLUTE_ABICALLS.  Use SYMBOL_GENERAL
 798         rather than SYMBOL_GOT_GLOBAL for locally-binding symbols if
 799         TARGET_ABSOLUTE_ABICALLS.
 800         (override_options): Adjust comments.  Improve the warning that is
 801         issued when -mabicalls and -G are used together.
 802         (mips_file_start): Remove comment.
 803         (mips_current_loadgp_style): New function.
 804         (mips_gnu_local_gp): New variable.
 805         (mips_emit_loadgp): Use mips_current_loadgp_style.  Handle
 806         LOADGP_ABSOLUTE.
 807         (mips_output_function_prologue): Use mips_current_laodgp_style.
 808         (mips_expand_prologue): Call mips_emit_loadgp before emitting
 809         the cprestore instruction.
 810         (mips_extra_live_on_entry): Fix reversed test.  Don't make $25
 811         live for TARGET_ABSOLUTE_ABICALLS.
 812         * config/mips/mips.h (TARGET_ABSOLUTE_ABICALLS): New macro.
 813         (ASM_SPEC): Pass down -mshared and -mno-shared.
 814         (MIPS_CALL): New macro.
 815         * config/mips/netbsd.h (TARGET_OS_CPP_BUILTINS): Remove __ABICALLS__
 816         definition.
 817         * doc/invoke.texi (-mabicalls): Update documentation.
 818         (-mshared): Document.
 819
 820 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
 821
 822         * config/ia64/unwind-hpux.c: New file.
 823         * config/ia64/t-hpux: Add unwind-hpux.c to libgcc.
 824
 825 2006-03-21  Steve Ellcey  <sje@cup.hp.com>
 826
 827         PR libgomp/26384
 828         * config/pa/pa64-hpux.h (LIB_SPEC): Fix for -mt and -pthread options.
 829
 830 2006-03-21  Jeff Law  <law@redhat.com>
 831
 832         * tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
 833         type conversions of a VR_VARYING source to a wider type.
 834
 835 2006-03-21  Eric Botcazou  <ebotcazou@libertysurf.fr>
 836
 837         * config.gcc (i[34567]86-*-solaris2*): Add config/sol2-10.h to
 838         tm_file on Solaris 10 and later.
 839         (sparc64-*-solaris2*): Likewise.
 840         (sparc-*-solaris2*): Likewise.
 841         * config/sol26.h: Rename to config/sol2-6.h.
 842         * config/sol2-10.h: New file.
 843
 844 2006-03-21  Andrew Pinski  <pinskia@physics.uc.edu>
 845
 846         PR tree-opt/26781
 847         * tree-ssa-pre.c (create_component_ref_by_pieces):
 848         Handle STRING_CST.
 849
 850 2006-03-21  Jakub Jelinek  <jakub@redhat.com>
 851
 852         PR c++/26690
 853         * tree.c (get_callee_fndecl): If CALL is error_mark_node,
 854         return it immediately.
 855
 856 2006-03-21  Michael Matz  <matz@suse.de>
 857
 858         * genautomata.c (<struct state>, num_out_arcs, presence_signature):
 859         New members.
 860         (remove_arc, add_arc): Update num_out_arcs member.
 861         (set_out_arc_insns_equiv_num): Returns nothing instead of number
 862         of out arcs.
 863         (cache_presence): New function.
 864         (compare_states_for_equiv): New function.
 865         (state_is_differed): Don't take number of outargs, adjust callers.
 866         Use new invariant for speeding up.
 867         (init_equiv_class): Create initial classes based on sorted
 868         input.
 869         (partition_equiv_class): Don't track out_arcs_num.
 870         (evaluate_equiv_classes): Call cache_presence on all states and
 871         sort them.
 872
 873 2006-03-21  Bernd Schmidt  <bernd.schmidt@analog.com>
 874
 875         * config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
 876         * config/bfin/bfin.c (bfin_dsp_memref_p): New function.
 877         (bfin_valid_reg_p): Test for pseudos explicitly and use only
 878         REGNO_MODE_CODE_OK_FOR_BASE_P.  New args MODE and OUTER_CODE; all
 879         callers changed.
 880         * config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
 881         (IREG_P, P_REGNO_P, I_REGNO_P): New macros.
 882         (enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
 883         (BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
 884         REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
 885         macros.
 886         (IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
 887         REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
 888         (REGNO_REG_CLASS): ARGP is in PREGS.
 889         * config/bfin/bfin.md (movhi_insn): Allow for addresses containing
 890         IREGS.
 891         (zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
 892         to deal with those addresses.
 893         * addresses.h: New file.
 894         * caller-save.c: Include "addresses.h".
 895         (init_caller_save): Use new base_reg_class function.
 896         * rtl-factoring.c: Include "addresses.h".
 897         (recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
 898         * recog.c: Include "addresses.h".
 899         (preprocess_constraints): Use new base_reg_class function.
 900         * regrename.c: Include "addresses.h".
 901         (scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
 902         functions.  Keep track of a new var INDEX_CODE to compute valid
 903         classes.
 904         (replace_oldest_value_addr): Likewise.
 905         (replace_oldest_value_mem): Use base_reg_class.
 906         * reload.c: Include "addresses.h".
 907         (REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
 908         (find_reloads): Use new base_reg_class function.
 909         (find_reloads_address): Likewise; also use regno_ok_for_base_p.
 910         (find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
 911         all callers and prototype changed.
 912         * reload1.c: Include "addresses.h".
 913         (maybe_fix_stack_asms): Use base_reg_class.
 914         * regclass.c: Include "addresses.h".
 915         (ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
 916         (init_reg_autoinc): Use new base_reg_class function.
 917         (record_reg_classes): Likewise.
 918         (record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
 919         OUTER_CODE and INDEX_CODE.  All callers and prototype changed.
 920         Use new args to compute necessary class.
 921
 922         * Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
 923         regrename.o, rtl-factoring.o): Update dependencies.
 924         * doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
 925         (REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
 926         (REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
 927         REG_OK_FOR_INDEX_P): Delete documentation.
 928
 929 2006-03-21  Alexey Starovoytov  <alexey.starovoytov@sun.com>
 930
 931         * config.gcc (sparc-*-solaris2*): Change the default CPU setting
 932         from V7 to V9 for Solaris 7 and above.
 933
 934 2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>
 935
 936         * doc/invoke.texi: Document new flag -fargument-noalias-anything.
 937         * tree-ssa-alias.c (may_alias_p): If flag_argument_noalias > 2,
 938         argument pointers may not alias any other storage.
 939         * common.opt: Define option -fargument-noalias-anything.
 940         * tree-ssa-structalias.c (intra_create_variable_infos): Fortran
 941         alias semantics is specified by flag_argument_noalias > 2.
 942
 943 2006-03-20  Jeff Law  <law@redhat.com>
 944
 945         * tree-pass.h (pass_phi_only_copy_prop): Delete.
 946         (pass_phi_only_cprop): Declare.
 947         * passes.c (init_optimization_passes): Replace pass_phi_only_copy_prop
 948         with phi_only_cprop
 949         * tree-ssa-dom.c (degenerate_phi_result): New function.
 950         (remove_stmt_or_phi, get_lhs_or_phi_result): Likewise.
 951         (get_rhs_or_phi_arg, propagate_rhs_into_lhs): Likewise.
 952         (eliminate_const_or_copy, eliminate_degenerate_phis_1): Likewise.
 953         (eliminate_degenerate_phis): Likewise.
 954         (pass_phi_only_cprop): New pass descriptor.
 955         * tree-ssa-copy.c (init_copy_prop): Lose PHIS_ONLY argument and
 956         support code.  Callers updated.
 957         (execute_copy_prop, do_copy_prop): Likewise and corresponding changes.
 958         (store_copy_prop): Likewise.
 959         (do_phi_only_copy_prop, pass_phi_only_copy_prop): Remove.
 960
 961 2006-03-20  Jason Merrill  <jason@redhat.com>
 962
 963         PR c++/21764
 964         * c-pragma.c (visstack): Move out of handle_pragma_visibility.
 965         (push_visibility, pop_visibility): Likewise.
 966         * c-pragma.h: Declare them.
 967
 968 2006-03-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 969
 970         * config/sh/sh.c (untangle_mova): Initialize n_addr and n_target.
 971
 972         * config/sh/sh.c (find_regmode_weight): Change the type of the first
 973         parameter and use get_ebb_head_tail.
 974         (sh_md_init_global): Adjust uses of find_regmode_weight.
 975
 976 2006-03-20  Steven Bosscher  <stevenb.gcc@gmail.com>
 977
 978         * function.h (struct function) <x_tail_recursion_reentry>:
 979         Rename to x_stack_check_probe_note.
 980         (tail_recursion_reentry): Rename to stack_check_probe_note.
 981         * function.c: Replace tail_recursion_reentry with
 982         stack_check_probe_note everywhere.
 983         (expand_function_start): Only emit a note for
 984         stack_check_probe_note with -fstack-protect.
 985         * stmt.c (expand_case): Don't emit NOTE_INSN_DELETED notes.
 986
 987         * emit-rtl.c (remove_unnecessary_notes): Remove.
 988         (pass_remove_unnecessary_notes): Remove.
 989         * rtl.h (remove_unnecessary_notes): Remove prototype.
 990         * final.c (final_start_function): Don't call remove_unnecessary_notes.
 991         * tree-pass.h (pass_remove_unnecessary_notes): Remove.
 992         * passes.c (pass_remove_unnecessary_notes): Don't run it.
 993
 994 2006-03-20  Andrew Pinski  <pinskia@physics.uc.edu>
 995
 996         PR tree-opt/26629
 997         * tree-ssa-pre (phi_translate): Handle ARRAY_REF's operands.
 998         (valid_in_set): Handle ARRAY_REF.
 999         Change "if min_variant or VH" to asserts.
1000         (create_component_ref_by_pieces): Handle ARRAY_REF.
1001         (create_expression_by_pieces): Likewise.
1002         (can_PRE_operation): ARRAY_REFs can now be PRE'd.
1003
1004 2006-03-20  David Edelsohn  <edelsohn@gnu.org>
1005
1006         * genpreds.c (write_insn_extra_address_constraint): Argument `c'
1007         is operand of switch, not str[0].
1008
1009 2006-03-20  Alan Modra  <amodra@bigpond.net.au>
1010
1011         * config/rs6000/rs6000.c (rs6000_handle_option): Use
1012         TARGET_NO_FP_IN_TOC inside #ifdef TARGET_USES_SYSV4_OPT too.
1013
1014 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
1015
1016         * genpreds.c (write_tm_preds_h): Add semicolon and newline at
1017         end of insn_extra_address_constraint declaration.
1018
1019 2006-03-19  David Edelsohn  <edelsohn@gnu.org>
1020
1021         * config/rs6000/rs6000.opt (no-fp-in-toc): Use Var not Mask.
1022         (no-sum-in-toc): Same.
1023         * config/rs6000/rs6000.c (rs6000_handle_option): Use new
1024         variables.
1025         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Set
1026         NO_FP_IN_TOC for -fPIC instead of mask.
1027
1028         * config/rs6000/t-aix43 (T_ADAFLAGS): Delete.
1029         (BOOT_LDFLAGS): Delete.
1030         (LDFLAGS): Delete.
1031         * config/rs6000/t-aix52: Same.
1032
1033         * config/rs6000/rs6000.md (store_multiple_power): Delete.
1034         (stmsi[345678]_power): New.
1035
1036 2006-03-17  Steve Ellcey  <sje@cup.hp.com>
1037
1038         * config/ia64/ia64.opt: Add empty line to end of file.
1039
1040 2006-03-17  Richard Guenther  <rguenther@suse.de>
1041
1042         PR middle-end/26721
1043         * builtins.c (get_pointer_alignment): For component style references
1044         adjust alignment to the component type alignment.  Make sure
1045         to adjust alignment for component access of constants.
1046
1047 2006-03-17  David Edelsohn  <edelsohn@gnu.org>
1048
1049         * config/rs6000/rs6000.md (strlensi): Emit barrier after
1050         unconditional jump.
1051
1052 2006-03-17  Paul Brook  <paul@codesourcery.com>
1053
1054         * doc/install.texi: Docuemnt --with-mode.
1055         * config.gcc: Add --with-mode for arm*-*-*.
1056         * config/arm/arm.h (OPTION_DEFAULT_SPECS): Add "mode".
1057
1058 2006-03-17  J"orn Rennecke <joern.rennecke@st.com>
1059
1060         * sh.c (max_labelno_before_reorg): New variable.
1061         (sh_reorg): Initialize it.
1062         (find_barrier): Check max_labelno_before_reorg before using
1063         label_to_alignment.  Take length of explicit alignment insns
1064         into account.  When seeing a UNSPECV_CONST_END, return it.
1065
1066         * sh.c (fixup_mova): Set mode of affected label to QImode.
1067         (untangle_mova): New function.
1068         (find_barrier): Use it.  Check mode of label before decrementing
1069         num_mova.
1070         (sh_reorg): Likewise.
1071         Set mode of all insns back to VOIDmode.
1072
1073         * sh.c (MOVA_LABELREF): New macro.
1074         (mova_p, fixup_mova, sh_reorg): Use it.
1075         (find_barrier, sh_reorg): Don't count num_mova back to 0 unless
1076         ADDR_DIFF_VEC matches mova.
1077
1078 2006-03-17  Steven Bosscher  <stevenb.gcc@gmail.com>
1079
1080         * dwarf2asm.c (dw2_asm_output_offset): Mark 'base' argument
1081         with ATTRIBUTE_UNUSED.
1082
1083 2006-03-17  Alexandre Oliva  <aoliva@redhat.com>
1084
1085         * dwarf2out.c (dwarf2out_stack_adjust): Always track the stack
1086         pointer, instead of assuming it is possible to derive the
1087         correct args size from a call insn.
1088
1089 2006-03-16  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
1090
1091         * rtl.h (CONST_INT_P): Define.
1092         * config/vax/vax.c (print_operand_address): Use CONST_INT_P()
1093         instead of GET_CODE(x) == CONST_INT.
1094         (vax_rtx_costs): Likewise.
1095         (vax_output_int_move): Likewise.
1096         (vax_output_int_add): Likewise.
1097         (legitimate_constant_address_p): Likewise.
1098         (index_term_p): Likewise.
1099         * config/vax/vax.h (PRINT_OPERAND): Likewise.
1100         * config/vax/vax.md (and<mode>3): Likewise.
1101         (ashrsi3): Likewise.
1102         (extv): Likewise.
1103         (movstricthi): Likewise.
1104         (movstrictqi): Likewise.
1105         (rotrsi3): Likewise.
1106         (five unnamed insns): Likewise.
1107
1108 2006-03-16  Geoffrey Keating  <geoffk@apple.com>
1109
1110         * doc/tm.texi (SDB and DWARF): Add extra parameter to
1111         ASM_OUTPUT_DWARF_OFFSET.  Use @var to indicate metavariables.
1112         * dwarf2asm.h (dw2_asm_output_offset): Add section parameter.
1113         * dwarf2asm.c (dw2_asm_output_offset): Add base section parameter.
1114         Pass to ASM_OUTPUT_DWARF_OFFSET.
1115         * dwarf2out.c (debug_frame_section): New.
1116         (output_call_frame_info): Use debug_frame_section.  Pass it to
1117         dw2_asm_output_offset.
1118         (output_die): Pass appropriate section to dw2_asm_output_offset.
1119         (output_compilation_unit_header): Likewise.
1120         (output_pubnames): Likewise.
1121         (output_aranges): Likewise.
1122         (enum dw_val_class): Break dw_val_class_lbl_offset into
1123         dw_val_class_lineptr and dw_val_class_macptr.
1124         (add_AT_lbl_offset): Delete.
1125         (add_AT_lineptr): New.
1126         (add_AT_macptr): New.
1127         (AT_lbl): Expect a lineptr or macptr.
1128         (print_die): Handle dw_val_class_lineptr and dw_val_class_macptr.
1129         (attr_checksum): Likewise.
1130         (same_dw_val_p): Likewise.
1131         (size_of_die): Likewise.
1132         (value_format): Likewise.
1133         (output_die): Likewise.
1134         (dwarf2out_finish): Call add_AT_lineptr and add_AT_macptr instead of
1135         add_AT_lbl_offset.
1136         * config/i386/cygming.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
1137         * config/i386/i386.c (x86_file_start): Call darwin_file_start.
1138         * config/darwin-protos.h (darwin_file_start): New.
1139         (darwin_asm_output_dwarf_offset): New.
1140         * config/ia64/ia64.h (ASM_OUTPUT_DWARF_OFFSET): Add extra parameter.
1141         * config/rs6000/rs6000.c (rs6000_darwin_file_start): Call
1142         darwin_file_start.
1143         * config/darwin.c (darwin_emit_unwind_label): Don't output label
1144         if not EH section; simplify.
1145         (darwin_file_start): New.
1146         (darwin_asm_output_dwarf_offset): New.
1147         * config/darwin.h (DEBUG_FRAME_SECTION): In __DWARF segment,
1148         mark as 'debug'.
1149         (DEBUG_INFO_SECTION): Likewise.
1150         (DEBUG_ABBREV_SECTION): Likewise.
1151         (DEBUG_ARANGES_SECTION): Likewise.
1152         (DEBUG_MACINFO_SECTION): Likewise.
1153         (DEBUG_LINE_SECTION): Likewise.
1154         (DEBUG_LOC_SECTION): Likewise.
1155         (DEBUG_PUBNAMES_SECTION): Likewise.
1156         (DEBUG_STR_SECTION): Likewise.
1157         (DEBUG_RANGES_SECTION): Likewise.
1158         (FRAME_BEGIN_LABEL): Must start with 'L' in debug section.
1159         (ASM_OUTPUT_DWARF_OFFSET): New.
1160
1161 2006-03-16  Joseph S. Myers  <joseph@codesourcery.com>
1162
1163         * config.gcc (tm_defines): Always add to previous value rather
1164         than replacing it.
1165
1166 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
1167
1168         * config/mips/predicates.md (splittable_const_int_operand): New,
1169         split from move_operand.
1170         (splittable_symbolic_operand): New.
1171         (move_operand): Add commentary.  Use splittable_const_int_operand.
1172         Inline mips_atomic_symbolic_constant_p.
1173         * config/mips/mips.md: Add combine splitters for handling moves
1174         of splittable_const_int_operands and splittable_symbolic_operands.
1175         * config/mips/mips-protos.h (mips_atomic_symbolic_constant_p): Delete.
1176         (mips_split_symbol): Declare.
1177         (mips_move_integer): Declare.
1178         * config/mips/mips.c (mips_split_p): Make global.
1179         (TARGET_MIN_ANCHOR_OFFSET): Override default.
1180         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1181         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1182         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): Likewise.
1183         (mips_offset_within_object_p): Handle block symbols.
1184         (mips_atomic_symbolic_constant_p): Delete.
1185         (mips_cannot_force_const_mem): Return false for constants that
1186         mips_legitimize_move can handle.
1187         (mips_use_blocks_for_constant_p): New function.
1188         (mips_split_symbol): Make global.
1189         (mips_move_integer): Likewise.  Add a temporary register argument.
1190         (mips_legitimize_const_move): Use splittable_const_int_operand and
1191         splittable_symbolic_operand.
1192         (mips_use_anchors_for_symbol_p): New function.
1193         * config/mips/mips.h: Protect externs with !USED_FOR_TARGET.
1194         (mips_split_p): Declare.
1195
1196 2006-03-16  Richard Sandiford  <richard@codesourcery.com>
1197
1198         * config.gcc (mips64*-*-linux*): Keep existing tm_defines.
1199         (mips*-*-linux*): Likewise.
1200
1201 2006-03-16  Roger Sayle  <roger@eyesopen.com>
1202             Daniel Speyer  <dspeyer@wam.umd.edu>
1203
1204         PR middle-end/18259
1205         * tree-dump.c (dump_real): New function.
1206         (dequeue_and_dump) <REAL_CST>: Use it to dump FP constants.
1207         * Makefile.in (REAL_H): New macro for dependencies on real.h.
1208         (tree-dump.o): Add $(REAL_H) to the dependencies.
1209
1210 2006-03-16  Roger Sayle  <roger@eyesopen.com>
1211
1212         PR middle-end/21781
1213         * real.c (real_from_string): If the mantissa is zero, don't bother
1214         parsing the exponent as the result should always be zero.
1215
1216 2006-03-16  Andreas Krebbel  <krebbel1@de.ibm.com>
1217
1218         * simplify-rtx.c (simplify_plus_minus): Simplify within CONST terms.
1219
1220 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1221
1222         * config/ia64/ia64.c (stops_p): Added explicit initialization.
1223         (ia64_first_cycle_multipass_dfa_lookahead_guard_spec,
1224         ia64_h_i_d_extended, ia64_set_sched_flags, ia64_speculate_insn,
1225         ia64_needs_block_p, ia64_gen_check, ia64_sched_init_global,
1226         ia64_sched_finish_global): New static functions to implement
1227         hooks from gcc_target.sched.
1228         (spec_check_no, max_uid, pending_data_specs): New static variables.
1229         (ia64_mode_to_int, ia64_gen_spec_insn, ia64_spec_check_p,
1230         ia64_spec_check_src_p): New static functions.
1231         (ia64_adjust_cost): Renamed to ia64_adjust_cost_2.
1232         (TARGET_SCHED_ADJUST_COST): Removed.
1233         (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_INIT_GLOBAL,
1234         TARGET_SCHED_FINISH_GLOBAL, TARGET_SCHED_H_I_D_EXTENDED,
1235         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
1236         TARGET_SCHED_GEN_CHECK,
1237         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
1238         TARGET_SCHED_SET_SCHED_FLAGS): New macros.
1239         (update_set_flags, group_barrier_needed, set_src_needs_barrier):
1240         Fixed to handle speculation checks.
1241         (rtx_needs_barrier): Fixed to handle speculative loads and
1242         their checks.
1243         (ia64_variable_issue): Added code to count speculative loads and their
1244         checks.
1245         (ia64_first_cycle_multipass_dfa_lookahead_guard): Fixed to handle
1246         speculative loads.
1247         (enum SPEC_MODES, enum SPEC_GEN_LD_MAP, SPEC_GEN_CHECK_OFFSET):
1248         New enumerations.
1249         (SPEC_GEN_EXTEND_OFFSET, SPEC_N, SPEC_GEN_CHECK_MUTATION_OFFSET):
1250         New constants.
1251         (ia64_ld_address_bypass_p): Fixed to handle speculative loads.
1252         (ia64_reorg): Reset stops_p to NULL after it is freed.
1253         * config/ia64/ia64.md (UNSPEC_LDA, UNSPEC_LDS, UNSPEC_LDSA,
1254         UNSPEC_LDCCLR, UNSPEC_CHKACLR, UNSPEC_CHKS): New constants.
1255         (itanium_class): chk_s renamed to chk_s_i.  New constants: chk_s_f,
1256         chk_a.
1257         (data_speculative, control_speculative, check_load): New attributes.
1258         (mov<mode>_advanced, mov<mode>_speculative,
1259         mov<mode>_speculative_advanced, zero_extend<mode>di2_advanced,
1260         zero_extend<mode>di2_speculative,
1261         zero_extend<mode>di2_speculative_advanced): New patterns for
1262         data and control speculative loads.
1263         (mov<mode>_clr, zero_extend<mode>di2_clr): New patterns for
1264         check loads.
1265         (advanced_load_check_clr_<mode>, speculation_check_<mode>):
1266         New pattern for data and control speculation checks.
1267         (MODE, MODE_FOR_EXTEND, output_a, output_s, output_sa, output_c_clr,
1268         ld_reg_constr, ldc_reg_constr, chk_reg_constr, mem_constr,
1269         reg_pred_prefix, ld_class, chka_class, chks_class, attr_yes):
1270         Auxiliary definitions for the patterns.
1271         * config/ia64/itanium1.md (1_fldc, 1_fldpc, 1_ldc, 1_chk_s_f, 1_chk_a,
1272         1b_fldc, 1b_fldpc, 1b_ldc, 1b_chk_s_f, 1b_chk_a): New resource
1273         constraints.
1274         (1_fld, 1_fldp, 1_ld, 1b_fld, 1b_fldp, 1b_ld): Add a condition
1275         for speculation.
1276         (1_chk_s, 1b_chk_s): Renamed to 1_chk_s_i, 1b_chk_s_i.
1277         * config/ia64/itanium2.md (2_flda, 2_fldc, 2_fldpc, 2_ldc, 2_chk_s_f,
1278         2_chk_a, 2b_flda, 2b_fldc, 2b_fldpc, 2b_ldc, 2b_chk_s_f, 2b_chk_a):
1279         New resource constraints.
1280         (2_fld, 2_fldp, 2_ld, 2b_fld, 2b_fldp, 2b_ld): Add a condition
1281         for speculation.
1282         (2_chk_s, 2b_chk_s): Renamed to 2_chk_s_i, 2b_chk_s_i.
1283         * config/ia64/ia64.opt (msched-br-data-spec, msched-ar-data-spec,
1284         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
1285         msched-in-control-spec, msched-ldc, msched-control-ldc,
1286         msched-spec-verbose, msched-prefer-non-data-spec-insns,
1287         msched-prefer-non-control-spec-insns,
1288         msched-count-spec-in-critical-path): New flags to tune speculative
1289         scheduling.
1290         * doc/invoke.texi (msched-br-data-spec, msched-ar-data-spec,
1291         msched-control-spec, msched-br-in-data-spec, msched-ar-in-data-spec,
1292         msched-in-control-spec, msched-ldc, msched-control-ldc,
1293         msched-spec-verbose, msched-prefer-non-data-spec-insns,
1294         msched-prefer-non-control-spec-insns,
1295         msched-count-spec-in-critical-path): Document new flags.
1296
1297 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1298
1299         * target.h (struct spec_info_def): New opaque declaration.
1300         (struct gcc_target.sched): New fields: adjust_cost_2, h_i_d_extended,
1301         speculate_insn, needs_block_p, gen_check,
1302         first_cycle_multipass_dfa_lookahead_guard_spec, set_sched_flags.
1303         * target-def.h (TARGET_SCHED_ADJUST_COST_2,
1304         TARGET_SCHED_H_I_D_EXTENDED, TARGET_SCHED_SPECULATE_INSN,
1305         TARGET_SCHED_NEEDS_BLOCK_P, TARGET_SCHED_GEN_CHECK,
1306         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
1307         TARGET_SCHED_SET_SCHED_FLAGS): New macros to initialize fields in
1308         gcc_target.sched.
1309         (TARGET_SCHED): Use new macros.
1310         * rtl.h (copy_DEPS_LIST_list): New prototype.
1311         * sched-int.h (struct sched_info): Change signature of new_ready field,
1312         adjust all initializations. New fields: add_remove_insn,
1313         begin_schedule_ready, add_block, advance_target_bb, fix_recovery_cfg,
1314         region_head_or_leaf_p.
1315         (struct spec_info_def): New structure declaration.
1316         (spec_info_t): New typedef.
1317         (struct haifa_insn_data): New fields: todo_spec, done_spec, check_spec,
1318         recovery_block, orig_pat.
1319         (glat_start, glat_end): New variables declaraions.
1320         (TODO_SPEC, DONE_SPEC, CHECK_SPEC, RECOVERY_BLOCK, ORIG_PAT):
1321         New access macros.
1322         (enum SCHED_FLAGS): New constants: SCHED_RGN, SCHED_EBB,
1323         DETACH_LIFE_INFO, USE_GLAT.
1324         (enum SPEC_SCHED_FLAGS): New enumeration.
1325         (NOTE_NOTE_BB_P): New macro.
1326         (extend_dependency_caches, xrecalloc, unlink_bb_notes, add_block,
1327         attach_life_info, debug_spec_status, check_reg_live): New functions.
1328         (get_block_head_tail): Change signature to get_ebb_head_tail, adjust
1329         all uses in ddg.c, modulo-sched.c, haifa-sched.c, sched-rgn.c,
1330         sched-ebb.c
1331         (get_dep_weak, ds_merge): Prototype functions from sched-deps.c .
1332         * ddg.c (get_block_head_tail): Adjust all uses.
1333         * modulo-sched.c (get_block_head_tail): Adjust all uses.
1334         (sms_sched_info): Initialize new fields.
1335         (contributes_to_priority): Removed.
1336         * haifa-sched.c (params.h): New include.
1337         (get_block_head_tail): Adjust all uses.
1338         (ISSUE_POINTS): New macro.
1339         (glat_start, glat_end): New global variables.
1340         (spec_info_var, spec_info, added_recovery_block_p, nr_begin_data,
1341         nr_be_in_data, nr_begin_control, nr_be_in_control, bb_header,
1342         old_last_basic_block, before_recovery, current_sched_info_var,
1343         rgn_n_insns, luid): New static variables.
1344         (insn_cost1): New function.  Move logic from insn_cost to here.
1345         (find_insn_reg_weight1): New function.  Move logic from
1346         find_insn_reg_weight to here.
1347         (reemit_notes, move_insn, max_issue): Change signature.
1348         (move_insn1): Removed.
1349         (extend_h_i_d, extend_ready, extend_global, extend_all, init_h_i_d,
1350         extend_bb): New static functions to support extension of scheduler's
1351         data structures.
1352         (generate_recovery_code, process_insn_depend_be_in_spec,
1353         begin_speculative_block, add_to_speculative_block,
1354         init_before_recovery, create_recovery_block, create_check_block_twin,
1355         fix_recovery_deps): New static functions to support
1356         generation of recovery code.
1357         (fix_jump_move, find_fallthru_edge, dump_new_block_header,
1358         restore_bb_notes, move_block_after_check, move_succs): New static
1359         functions to support ebb scheduling.
1360         (init_glat, init_glat1, attach_life_info1, free_glat): New static
1361         functions to support handling of register live information.
1362         (associate_line_notes_with_blocks, change_pattern, speculate_insn,
1363         sched_remove_insn, clear_priorities, calc_priorities, bb_note,
1364         add_jump_dependencies): New static functions.
1365         (check_cfg, has_edge_p, check_sched_flags): New static functions for
1366         consistancy checking.
1367         (debug_spec_status): New function to call from debugger.
1368         (priority): Added code to handle speculation checks.
1369         (rank_for_schedule): Added code to distinguish speculative instructions.
1370         (schedule_insn): Added code to handle speculation checks.
1371         (unlink_other_notes, rm_line_notes, restore_line_notes, rm_other_notes):
1372         Fixed to handle ebbs.
1373         (move_insn): Added code to handle ebb scheduling.
1374         (max_issue): Added code to use ISSUE_POINTS of instructions.
1375         (choose_ready): Added code to choose between speculative and
1376         non-speculative instructions.
1377         (schedule_block): Added code to handle ebb scheduling and scheduling of
1378         speculative instructions.
1379         (sched_init): Initialize new variables.
1380         (sched_finish): Free new variables.  Print statistics.
1381         (try_ready): Added code to handle speculative instructions.
1382         * lists.c (copy_DEPS_LIST_list): New function.
1383         * sched-deps.c (extend_dependency_caches): New function.  Move logic
1384         from create_dependency_caches to here.
1385         (get_dep_weak, ds_merge): Make global.
1386         * genattr.c (main): Code to output prototype for
1387         dfa_clear_single_insn_cache.
1388         * genautomata.c (DFA_CLEAR_SINGLE_INSN_CACHE_FUNC_NAME): New macros.
1389         (output_dfa_clean_insn_cache_func): Code to output
1390         dfa_clear_single_insn_cache function.
1391         * sched-ebb.c (target_n_insns): Remove.  Adjust all users to use
1392         n_insns.
1393         (can_schedule_ready_p, fix_basic_block_boundaries, add_missing_bbs):
1394         Removed.
1395         (n_insns, dont_calc_deps, ebb_head, ebb_tail, last_bb):
1396         New static variables.
1397         (begin_schedule_ready, add_remove_insn, add_block1, advance_target_bb,
1398         fix_recovery_cfg, ebb_head_or_leaf_p): Implement hooks from
1399         struct sched_info.
1400         (ebb_sched_info): Initialize new fields.
1401         (get_block_head_tail): Adjust all uses.
1402         (compute_jump_reg_dependencies): Fixed to use glat_start.
1403         (schedule_ebb): Code to remove unreachable last block.
1404         (schedule_ebbs): Added code to update register live information.
1405         * sched-rgn.c (region_sched_info): Initialize new fields.
1406         (get_block_head_tail): Adjust all uses.
1407         (last_was_jump): Removed.  Adjust users.
1408         (begin_schedule_ready, add_remove_insn, insn_points, extend_regions,
1409         add_block1, fix_recovery_cfg, advance_target_bb, region_head_or_leaf_p):
1410         Implement new hooks.
1411         (check_dead_notes1): New static function.
1412         (struct region): New fields: dont_calc_deps, has_real_ebb.
1413         (RGN_DONT_CALC_DEPS, RGN_HAS_REAL_EBB): New access macros.
1414         (BB_TO_BLOCK): Fixed to handle EBBs.
1415         (EBB_FIRST_BB, EBB_LAST_BB): New macros.
1416         (ebb_head): New static variable.
1417         (debug_regions, contributes_to_priority): Fixed to handle EBBs.
1418         (find_single_block_regions, find_rgns, find_more_rgns): Initialize
1419         new fields.
1420         (compute_dom_prob_ps): New assertion.
1421         (check_live_1, update_live_1): Fixed to work with glat_start instead of
1422         global_live_at_start.
1423         (init_ready_list): New assertions.
1424         (can_schedule_ready_p): Split update code to begin_schedule_ready.
1425         (new_ready): Add support for BEGIN_CONTROL speculation.
1426         (schedule_insns): Fixed code that updates register live information
1427         to handle EBBs.
1428         (schedule_region): Fixed to handle EBBs.
1429         (init_regions): Use extend_regions and check_dead_notes1.
1430         * params.def (PARAM_MAX_SCHED_INSN_CONFLICT_DELAY,
1431         PARAM_SCHED_SPEC_PROB_CUTOFF): New parameters.
1432         * doc/tm.texi (TARGET_SCHED_ADJUST_COST_2, TARGET_SCHED_H_I_D_EXTENDED,
1433         TARGET_SCHED_SPECULATE_INSN, TARGET_SCHED_NEEDS_BLOCK_P,
1434         TARGET_SCHED_GEN_CHECK,
1435         TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD_SPEC,
1436         TARGET_SCHED_SET_SCHED_FLAGS): Document.
1437         * doc/invoke.texi (max-sched-insn-conflict-delay,
1438         sched-spec-prob-cutoff): Document.
1439
1440 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1441
1442         * sched-int.h (struct haifa_insn_data): New fields: resolved_deps,
1443         inter_tick, queue_index.
1444         (struct sched_info): Change signature of init_ready_list field.
1445         Adjust all initializations.
1446         (RESOLVED_DEPS): New access macro.
1447         (ready_add): Remove prototype.
1448         (try_ready): Add prototype.
1449         * sched-rgn.c (init_ready_list): Use try_ready.
1450         (schedule_region): Initialize
1451         current_sched_info->{sched_max_insns_priority, queue_must_finish_empty}.
1452         * sched-ebb.c (new_ready): Remove.  Adjust ebb_sched_info.
1453         (init_ready_list): Use try_ready.
1454         (schedule_ebb): Initialize current_sched_info->sched_max_insns_priority.
1455         * lists.c (remove_list_elem): Remove `static'.
1456         (remove_free_INSN_LIST_elem): New function.
1457         * rtl.h (remove_list_elem, remove_free_INSN_LIST_elem): Add prototypes.
1458         * haifa-sched.c (INTER_TICK, QUEUE_INDEX): New macros.
1459         (INVALID_TICK, MIN_TICK, QUEUE_SCHEDULED, QUEUE_NOWHERE, QUEUE_READY):
1460         New constants.
1461         (readyp): New variable.
1462         (queue_remove, ready_remove_insn, fix_inter_tick, fix_tick_ready,
1463         change_queue_index, resolve_dep): New static functions.
1464         (try_ready): New function.  Adjust callers in sched-rgn.c and
1465         sched-ebb.c to use it instead of ready_add.
1466         (clock_var): Move at the begining of file.
1467         (rank_for_schedule): Fix typo.
1468         (queue_insn): Add assertion.  Handle QUEUE_INDEX.
1469         (ready_lastpos): Enforce assertion.
1470         (ready_add): Make it static.  Handle QUEUE_INDEX.  Add new argument,
1471         update all callers.
1472         (ready_remove_first, ready_remove): Handle QUEUE_INDEX.
1473         (schedule_insn): Rewrite to use try_ready and resolve_dep.
1474         (queue_to_ready): Use free_INSN_LIST_list.
1475         (early_queue_to_ready): Fix typo.
1476         (schedule_block): Init readyp.  Move init_ready_list call after the
1477         initialization of clock_var.  Fix error in rejecting insn by
1478         targetm.sched.dfa_new_cycle.  Add call to fix_inter_tick.  Remove code
1479         that previously corrected INSN_TICKs.  Add code for handling
1480         QUEUE_INDEX.
1481         (set_priorities): Fix typo.
1482         (sched_init): Initialize INSN_TICK, INTER_TICK and QUEUE_INDEX.
1483         Clarify comment and code that keeps current_sched_info->next_tail
1484         non-null.
1485
1486 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1487
1488         * sched-rgn.c (extend_rgns): New static function.
1489         (find_rgns): Use it.
1490         (gather_region_statistics, print_region_statistics): New static
1491         functions.
1492         * params.def (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS): New parameter.
1493         * doc/invoke.texi (max-sched-extend-regions-iters): Document.
1494
1495 2006-03-16  Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
1496             Andrey Belevantsev <abel@ispras.ru>
1497
1498         * ddg.c (build_intra_loop_deps): Adjust add_forward_dependence call.
1499         * lists.c (unused_deps_list): New variable.
1500         (free_list): Add assertions to verify the proper distinguishing
1501         between INSN_LISTs and DEPS_LISTs.
1502         (find_list_elem, remove_list_elem, remove_list_node): New static
1503         functions.
1504         (alloc_DEPS_LIST, free_DEPS_LIST, free_DEPS_LIST_node,
1505         remove_free_INSN_LIST_elem, remove_free_DEPS_LIST_elem,
1506         remove_free_INSN_LIST_node, remove_free_DEPS_LIST_node): New functions.
1507         (alloc_INSN_LIST): Assert that the list we're working on is indeed
1508         an INSN_LIST.
1509         (free_INSN_LIST_node): Likewise.
1510         * modulo-sched.c (current_sched_info): Initialize flags field.
1511         * reg-notes.def: Exchange DEP_ANTI and DEP_OUTPUT.
1512         * rtl.def (DEPS_LIST): Define.
1513         * rtl.h: Declare new functions from lists.c.
1514         * sched-deps.c (spec_dependency_cache): New static variable.
1515         (maybe_add_or_update_back_dep_1, add_back_dep): New static functions.
1516         (add_dependence): Change return type to void.  Move the logic to ...
1517         (add_or_update_back_dep_1): ... here.  Handle speculative dependencies.
1518         (delete_all_dependences): Add comment about forward_dependency_cache.
1519         Handle spec_dependency_cache.  Handle DEPS_LISTs.
1520         (fixup_sched_groups): Clarify the change of priority of output
1521         and anti dependencies.
1522         (sched_analyze_2): Adjust add_dependence calls to create data
1523         speculative dependence.
1524         (add_forward_dependence): Renamed to add_forw_dep, change prototype.
1525         Adjust all callers.  Handle DEPS_LISTS.
1526         (compute_forward_dependences): Use add_forw_dep.  Sort LOG_LINKs in
1527         presence of speculation.
1528         (init_dependency_caches, free_dependency_caches):
1529         Handle spec_dependency_cache.
1530         (adjust_add_sorted_back_dep, adjust_back_add_forw_dep, delete_forw_dep,
1531         estimate_dep_weak, get_dep_weak, ds_merge, check_dep_status):
1532         New static functions.
1533         (add_or_update_back_dep, add_or_update_back_forw_dep,
1534         add_back_forw_dep, delete_back_forw_dep): New functions.
1535         * sched-int.h (ds_t, dw_t): New typedefs.
1536         (struct sched_info): Add new field flags.
1537         (struct haifa_insn_data): Add new bitfield has_internal_dep.
1538         Prototype new sched-deps.c functions.
1539         (HAS_INTERNAL_DEP, DEP_STATUS): New access macros.
1540         (BITS_PER_DEP_STATUS, BITS_PER_DEP_WEAK, DEP_WEAK_MASK, MAX_DEP_WEAK,
1541         MIN_DEP_WEAK, NO_DEP_WEAK, UNCERTAIN_DEP_WEAK, BEGIN_DATA, BE_IN_DATA,
1542         BEGIN_CONTROL, BE_IN_CONTROL, BEGIN_SPEC, DATA_SPEC, CONTROL_SPEC,
1543         SPECULATIVE, BE_IN_SPEC, FIRST_SPEC_TYPE, LAST_SPEC_TYPE,
1544         SPEC_TYPE_SHIFT, DEP_TRUE, DEP_OUTPUT, DEP_ANTI, DEP_TYPES, HARD_DEP):
1545         New constants.
1546         (enum SPEC_TYPES_OFFSETS, enum DEPS_ADJUST_RESULT, enum SCHED_FLAGS):
1547         New enums.
1548         * sched-rgn.c (current_sched_info): Initialize flags field.
1549         (schedule_insns): Initialize current_sched_info before the sched_init
1550         call.
1551         * sched-ebb.c (current_sched_info): Initialize flags field.
1552         (add_deps_for_risky_insns): Use control_flow_insn_p instead of JUMP_P.
1553         Call add_or_update_back_dep instead of add_dependence.
1554         Create control speculative dependencies.
1555         (schedule_insns): Initialize current_sched_info before the sched_init
1556         call.
1557
1558 2006-03-16  Kaz Kojima  <kkojima@gcc.gnu.org>
1559
1560         * config/sh/linux-unwind.h (shmedia_fallback_frame_state): Set
1561         fs->signal_frame.
1562         (sh_fallback_frame_state): Likewise.
1563
1564 2006-03-15  Geoffrey Keating  <geoffk@apple.com>
1565
1566         * config.gcc (*-*-darwin*): Don't build crt2.o for all Darwin ports.
1567         Do switch on default_use_cxa_atexit.
1568         (powerpc*-*-darwin*): Build crt2.o on powerpc.
1569         * config/darwin-crt3.o: New.
1570         * config/darwin.h (LINK_SPEC): If -shared-libgcc, make linker default
1571         to 10.3.  Pass '-multiply_defined suppress' if crt3.o is in use.
1572         (STARTFILE_SPEC): Add crt3.o when -shared-libgcc and appropriate
1573         OS version.
1574         * config/rs6000/t-darwin: Move crt2.o building to here.
1575         * config/rs6000/darwin.h (C_COMMON_OVERRIDE_OPTIONS): Update
1576         Mac OS version for using __cxa_get_exception_ptr.  Don't test versions
1577         of __cxa_atexit.
1578
1579 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
1580
1581         * config/vax/vax.c (nonindexed_address_p): Change logical negation
1582         from '! xxx' to '!xxx' for coding-style conformance.
1583         * config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Likewise.
1584         (EXTRA_CONSTRAINT): Likewise.
1585         * config/vax/vax.md (four unnamed insns): Likewise.
1586
1587 2006-03-15  Paul Brook  <paul@codesourcery.com>
1588
1589         * config/arm/arm.c (minipool_pad): New.
1590         (add_minipool_forward_ref): Include pool alignment padding in address
1591         calculation.
1592         (push_minipool_fix): Set minipool_pad.
1593         (minipool_pad): Ditto.
1594
1595 2006-03-15  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
1596
1597         * config/vax/vax.c (split_quadword_operands): Use MEM_P()
1598         instead of GET_CODE() == MEM and REG_P() instead of
1599         GET_CODE() == REG.
1600         (print_operand_address): Likewise.
1601         (vax_address_cost): Likewise.
1602         (vax_rtx_costs): Likewise.
1603         (vax_notice_update_cc): Likewise.
1604         (vax_output_int_add): Likewise.
1605         (INDEX_REGISTER_P): Likewise.
1606         (BASE_REGISTER_P): Likewise.
1607         (nonindexed_address_p): Likewise.
1608         (vax_mode_dependent_address_p): Likewise.
1609         * config/vax/vax.h (EXTRA_CONSTRAINT): Likewise.
1610         (PRINT_OPERAND): Likewise.
1611         * config/vax/vax.md (ashlsi3): Likewise.
1612         (ashlsi3): Likewise.
1613         (some more unnamed insns): Likewise.
1614
1615 2006-03-15  Kazu Hirata  <kazu@codesourcery.com>
1616
1617         * tree-ssa-dce.c (EXECUTE_IF_CONTROL_DEPENDENT): Make it an
1618         iterator-style macro.
1619         (mark_control_dependent_edges_necessary): Update the use of
1620         EXECUTE_IF_CONTROL_DEPENDENT.
1621
1622 2006-03-15  J"orn Rennecke <joern.rennecke@st.com>
1623
1624         * config/sh/predicates.md (cache_address_operand): Special.
1625         (ua_address_operand): Likewise.
1626
1627 2006-03-15  Zdenek Dvorak <dvorakz@suse.cz>
1628
1629         * haifa-sched.c (unlink_other_notes, reemit_notes): Do not handle
1630         loop notes.
1631         * sched-deps.c (sched_analyze_insn, sched_analyze): Ditto.
1632
1633 2006-03-15  Andreas Schwab  <schwab@suse.de>
1634
1635         * gensupport.c (identify_predicable_attribute): Don't free p_false
1636         when it is still in use.
1637
1638 2006-03-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
1639
1640         * config.gcc (default with_cpu setting) <sparc*-*-*>: Do not modify
1641         the default setting here.
1642
1643 2006-03-14  Steven Bosscher  <stevenb.gcc@gmail.com>
1644
1645         * tree-pass.h (pass_cfg): Remove.
1646         * alias.c (rest_of_handle_cfg, pass_cfg): Remove.
1647         * passes.c (pass_cfg): Don't run it.
1648
1649 2006-03-14  Kazu Hirata  <kazu@codesourcery.com>
1650
1651         * Makefile.in (reg-stack.o): Don't depend on gt-reg-stack.h.
1652         * reg-stack.c (stack_regs_mentioned_data): Change the type to
1653         VEC(char,heap) *.
1654         (stack_regs_mentioned): Update the uses of
1655         stack_regs_mentioned_data.  Don't access the array beyond its
1656         end.
1657         (reg_to_stack): Update the uses of stack_regs_mentioned_data.
1658         Don't include gt-reg-stack.h.
1659
1660         * config/bfin/bfin.h (UNALIGNED_WORD_ASM_OP): Remove.
1661         * system.h (UNALIGNED_WORD_ASM_OP): Poison.
1662
1663         * combine.c (UWIDE_SHIFT_LEFT_BY_BITS_PER_WORD): Remove.
1664
1665         PR middle-end/26684
1666         * reg-stack.c (stack_regs_mentioned_data): Put it undef #ifdef
1667         STACK_REGS.
1668
1669 2006-03-14  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1670
1671         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Fix typo.
1672
1673 2006-03-14  Richard Guenther  <rguenther@suse.de>
1674
1675         PR tree-optimization/26672
1676         * tree-ssa-propagate.c (set_rhs): Don't walk DEFs if not in
1677         SSA form.
1678
1679 2006-03-14  Richard Guenther  <rguenther@suse.de>
1680
1681         PR tree-optimization/26667
1682         * ipa-inline.c (cgraph_check_inline_limits): Walk the correct
1683         node for the callees.  Always allow inlining if it will shrink
1684         the function size.
1685
1686 2006-03-14  Richard Guenther  <rguenther@suse.de>
1687
1688         PR middle-end/26659
1689         * builtins.c (get_pointer_alignment): Prefer alignment
1690         information from decls over that from types.
1691
1692 2006-03-14  Andrew Pinski  <pinskia@physics.uc.edu>
1693
1694         PR target/26657
1695         * config/darwin.h (LINK_COMMAND_SPEC): Handle -fopenmp.
1696
1697 2006-03-14  Joseph S. Myers  <joseph@codesourcery.com>
1698
1699         * config/rs6000/rs6000.opt (mdlmzb): New option.
1700         (msched-prolog, msched-epilog): Use Var not Mask.
1701         * doc/invoke.texi (-mdlmzb): Document.
1702         * config/rs6000/rs6000.c (TARGET_DEFAULT_TARGET_FLAGS): Remove
1703         MASK_SCHED_PROLOG.
1704         (rs6000_override_options): Enable -mdlmzb for 405 and 440.
1705         * config/rs6000/rs6000.md: Add dlmzb support for 405 and 440.
1706
1707 2006-03-13  Uttam Pawar  <uttamp@us.ibm.com>
1708
1709         PR rtl-optimization/25739
1710         * bt-load.c (augment_live_range): Free tos pointer.
1711
1712         * gensupport.c (identify_predicable_attribute): Free
1713         p_false pointer.
1714         * gcov.c (create_file_names): Free name pointer.
1715
1716 2006-03-13  Roger Sayle  <roger@eyesopen.com>
1717
1718         PR middle-end/26557
1719         * stmt.c (emit_case_nodes): Handle the case where the index is a
1720         CONST_INT, where the comparison mode is specified by the index type.
1721
1722 2006-03-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1723
1724         * pa/pa32-linux.h (CRT_CALL_STATIC_FUNCTION): Define when CRTSTUFFS_O
1725         is defined.
1726
1727 2006-03-13  Richard Sandiford  <richard@codesourcery.com>
1728
1729         * config/mips/mips.md (*branch_fp): Use %Z2 for the condition.
1730         (*branch_fp_inverted): Likewise.
1731
1732 2006-03-13  Jakub Jelinek  <jakub@redhat.com>
1733
1734         PR middle-end/25989
1735         * omp-low.c (expand_omp_for_generic): Mark istart0
1736         and iend0 as addressable.
1737
1738 2006-03-13  Jie Zhang  <jie.zhang@analog.com>
1739
1740         * config/bfin/uclinux.h: Define _GNU_SOURCE in CPLUSPLUS_CPP_SPEC.
1741
1742 2006-03-13  Jeff Law  <law@redhat.com>
1743
1744         * tree-vrp.c (stmt_interesting_for_vrp): Some statements with
1745         virtual operands are interesting.
1746         (vrp_visit_stmt): Corresponding changes.
1747
1748 2006-03-13  Bernd Schmidt  <bernd.schmidt@analog.com>
1749
1750         * config/bfin/lib1funcs.asm (___umodsi3): Use stack to save contents
1751         of RETS.
1752         * config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): If
1753         TARGET_ID_SHARED_LIBRARY, define __ID_SHARED_LIB__.
1754         * config/bfin/crti.S: Use it instead of __PIC__.
1755         * config/bfin/crtn.S: Likewise.
1756
1757         * config/bfin/bfin.md (call_value_symbol, sibcall_value_symbol,
1758         call_symbol, sibcall_symbol): Disallow if TARGET_ID_SHARED_LIBRARY,
1759         not if flag_pic.
1760         Lose 'G' modifier for call operand.
1761         * config/bfin/bfin.c (print_operand) <case SYMBOL_REF>: Don't
1762         recognize 'G' modifier.
1763
1764 2006-03-13  Eric Botcazou  <ebotcazou@adacore.com>
1765
1766         PR middle-end/18859
1767         * gimplify.c (gimplify_switch_expr): Discard empty ranges.
1768         * stmt.c (expand_case): Likewise.
1769
1770 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1771
1772         PR rtl-optimization/26254
1773         * loop-invariant.c (seq_insns_valid_p): New function.
1774         (move_invariant_reg): Only emit new code if it is valid.
1775
1776 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1777
1778         * cfgrtl.c (last_loop_beg_note, back_edge_of_syntactic_loop_p):
1779         Removed.
1780         (force_nonfallthru_and_redirect): Do not use last_loop_beg_note.
1781         (rtl_split_edge): Do not use back_edge_of_syntactic_loop_p.
1782         (commit_one_edge_insertion): Do not look for loop notes.
1783
1784 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1785
1786         * jump.c (follow_jumps): Do not check for loop notes.  Move check for
1787         flag_test_coverage out of loop.
1788
1789 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1790
1791         * final.c (shorten_branches): Remove outdated comment, and turn
1792         the if branch that guards it to continue.
1793
1794 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
1795
1796         * cfgloop.c (flow_loop_dump): Do not dump loop->invalid field.
1797         * cfgloop.h (struct loop): Remove unused fields.
1798
1799 2006-03-13  Kazu Hirata  <kazu@codesourcery.com>
1800
1801         * doc/invoke.texi (-fdump-rtl-loop): Remove.
1802         (-dL, -fdump-rtl-loop2): Update the dump file names
1803
1804         * doc/invoke.texi: Update dump file names.
1805
1806 2006-03-12  Steven Bosscher  <stevenb.gcc@gmail.com>
1807
1808         * predict.c (estimate_probability): Remove.
1809         * profile.c (rest_of_handle_branch_prob, pass_branch_prob): Remove.
1810         * basic-block.h (estimate_probability): Remove prototype.
1811         * passes.c (finish_optimization_passes): Dump branch prediction or
1812         profiling heuristics to the .profile tree dump.
1813         (init_optimization_passes): Unqueue pass_branch_prob.
1814
1815         * doc/invoke.texi (-fdump-rtl-bp): Remove.
1816
1817 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
1818
1819         * rtl.def (LABEL_REF): Remove the field for LABEL_NEXTREF.
1820         * rtl.h (LABEL_NEXTREF): Remove field accessor.
1821
1822 2006-03-11  Eric Botcazou  <ebotcazou@adacore.com>
1823
1824         * function.h (frame_offset_overflow): Declare.
1825         * function.c (frame_offset_overflow): New function.
1826         (assign_stack_local_1): Call it to detect that the offset overflows.
1827         * cfgexpand.c (alloc_stack_frame_space): Likewise.
1828
1829 2006-03-11  Steven Bosscher  <stevenb.gcc@gmail.com>
1830
1831         * config/sh/sh.c: Include alloc-pool.h.
1832         (label_ref_list_pool): New alloc pool.
1833         (label_ref_list_t): New type for lists of labels.
1834         (struct pool_node): Make wend a label_ref_list_t.
1835         (add_constant): Use the new type, eradicate LABEL_NEXTREF
1836         references.
1837         (dump_table): Likewise.
1838         (sh_reorg): Set up the alloc pool before using add_constant and
1839         dump_table, and destroy it when finishing.
1840
1841 2006-03-11  Richard Sandiford  <richard@codesourcery.com>
1842
1843         * config/mips/mips.c: Remove redundant comment.
1844
1845 2006-03-10  Jason Merrill  <jason@redhat.com>
1846
1847         PR c/26004
1848         * gimplify.c (gimplify_modify_expr_rhs): Don't do return slot opt if
1849         the target was declared 'register'.
1850
1851 2006-03-10  Adam Nemet  <anemet@caviumnetworks.com>
1852
1853         * genpreds.c (write_insn_constraint_len): Change definition of
1854         insn_constraint_len to return size_t to match the declaration.
1855
1856 2006-03-10  DJ Delorie  <dj@redhat.com>
1857
1858         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Bit numbers
1859         start at zero.
1860         (m32c_expand_insv): Fix test for an AND mask.
1861
1862 2006-03-10  Richard Guenther  <rguenther@suse.de>
1863
1864         PR middle-end/26565
1865         * builtins.c (get_pointer_alignment): Handle component
1866         references for field alignment.
1867
1868 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
1869
1870         * config.gcc (sh*-superh-elf, sh*elf (newlib)): Use newlib.h
1871         when building with libgloss.
1872         (sh*elf): Implement --without-fp option.
1873         (sh64-superh-linux*): Don't multilib.
1874
1875 2006-03-10  J"orn Rennecke <joern.rennecke@st.com>
1876
1877         * struct-equiv.c (rtx_equiv_p): Fix POST_MODIFY case.
1878
1879 2006-03-09  Andrew Pinski  <pinskia@physics.uc.edu>
1880
1881         * tree-ssa-phiopt.c (tree_ssa_phiopt): Add cfgchanged variable.
1882         Set it when one of the replacement functions returned true.
1883         Return TODO_cleanup_cfg if cfgchanged is true.
1884         (pass_phiopt) <todo_flags_finish>: Remove TODO_cleanup_cfg.
1885
1886 2006-03-09  Adam Nemet  <anemet@caviumnetworks.com>
1887
1888         * combine.c (simplify_shift_const_1): Use gen_lowpart_or_truncate
1889         instead of gen_lowpart.
1890
1891 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
1892
1893         * config/mips/mips-protos.h (mips_output_conditional_branch): Change
1894         interface.
1895         (mips_output_order_conditional_branch): Declare.
1896         * config/mips/mips.h (MIPS_BRANCH): New macro.
1897         * config/mips/mips.c (gen_conditional_branch): Use VOIDmode
1898         for the comparison.  Use gen_condjump.
1899         (mips_output_conditional_branch): Rework interface to take the
1900         asm templates for a direct branch and the inverse of a direct branch.
1901         (mips_output_order_conditional_branch): New function.
1902         (mips_builtin_branch_and_move): New function.
1903         (mips_expand_builtin_compare): Use it.  Use VOIDmode for the
1904         branch condition.  Use gen_single_cc as the condition for
1905         __builtin_mips_upper_* or __builtin_mips_lower_*.
1906         (mips_expand_builtin_bposge): Use mips_builtin_branch_and_move.
1907         Use VOIDmode for the branch condition.
1908         * config/mips/predicates.md (order_operator): New predicate.
1909         * config/mips/mips.md (UNSPEC_SINGLE_CC): New constant.
1910         (branch_fp): Rename to...
1911         (*branch_fp): ...this.  Remove mode from comparison operator.
1912         Use new mips_output_conditional_branch interface.
1913         (branch_fp_inverted): Rename to...
1914         (*branch_fp_inverted): ...this and update as for *branch_fp.
1915         (*branch_zero<mode>): Rename to...
1916         (*branch_order<mode>): ...this.  Remove mode from comparison operator.
1917         Use mips_output_order_conditional_branch.  Only accept ordered
1918         comparisons.
1919         (*branch_zero<mode>_inverted): Rename to...
1920         (*branch_order<mode>_inverted): ...this and update as for
1921         *branch_order<mode>.
1922         (*branch_equality<mode>): Accept zero as the second operand to
1923         the equality operator.  Use the new mips_output_conditional_branch
1924         interface.
1925         (*branch_equality<mode>_inverted): Likewise.
1926         (condjump): New expander.
1927         * config/mips/mips-dsp.md (mips_bposge): Remove mode from comparison
1928         operator.
1929         * config/mips/mips-ps-3d.md (bc1any4t, bc1any4f): Likewise.
1930         (bc1any2t, bc1any2f): Likewise.
1931         (single_cc): New expander.
1932         (*branch_upper_lower, *branch_upper_lower_inverted): New patterns.
1933
1934 2006-03-09  Richard Sandiford  <richard@codesourcery.com>
1935
1936         * doc/md.texi: Update documentation of MIPS constraints.
1937         * config/mips/constraints.md: New file.
1938         * config/mips/mips.md: Include it.
1939         * config/mips/mips.c (mips_char_to_class): Delete.
1940         (override_options): Don't initialize mips_char_to_class.
1941         * config/mips/mips.h (mips_char_to_class): Delete.
1942         (REG_CLASS_FROM_LETTER): Delete.
1943         (CONST_OK_FOR_LETTER_P): Delete.
1944         (CONST_DOUBLE_OK_FOR_LETTER_P): Delete.
1945         (EXTRA_CONSTRAINT_Y): Delete.
1946         (EXTRA_CONSTRAINT_STR): Delete.
1947         (CONSTRAINT_LEN): Delete.
1948         (EXTRA_MEMORY_CONSTRAINT): Delete.
1949
1950 2006-03-09  Diego Novillo  <dnovillo@redhat.com>
1951
1952         * tree-cfg.c (move_block_to_fn): Remove the statements from the
1953         original fn's eh regions.
1954
1955 2006-03-09  Eric Botcazou  <ebotcazou@adacore.com>
1956
1957         * fold-const.c (build_range_check): Make sure to use a valid type to
1958         apply the "(c>=low) && (c<=high) into (c-low>=0) && (c-low<=high-low)"
1959         transformation.
1960
1961         (range_predecessor): New static function.
1962         (range_successor): Likewise.
1963         (merge_ranges): Use them to compute predecessors and successors of
1964         range bounds.
1965
1966 2006-03-09  Roger Sayle  <roger@eyesopen.com>
1967
1968         PR middle-end/26561
1969         * fold-const.c (fold_div_compare): When optimizing X/C1 op C2 as
1970         X op C3, consider whether C3 overflows towards +Inf or -Inf.
1971
1972 2006-03-08  DJ Delorie  <dj@redhat.com>
1973
1974         * config/m32c/addsub.md (addqi3): Disparage a0/a1.
1975         (addpsi3): Expand to include memory operands.  Remove
1976         reload-specific splits.
1977         * config/m32c/bitops.md (bset_qi, bset_hi, bclr_qi): New.
1978         (andqi3_16, andhi3_16, iorqi3_16, iorhi3_16): New.
1979         (andqi3_24, andhi3_24, iorqi3_24, iorhi3_24): New.
1980         (andqi3, andhi3, iorqi3, iorhi3): Convert to expanders.
1981         (shift1_qi, shift1_hi, insv): New.
1982         * config/m32c/cond.md (cbranchqi4, cbranchhi4): Remove.
1983         (cbranch<mode>4, stzx_16, stzx_24_<mode>, stzx_reversed,
1984         cmp<mode>, b<code>, s<code>, s<code>_24, movqicc, movhicc,
1985         cond_to_int): New.
1986         * config/m32c/m32c-protos.h: Update as needed.
1987         * config/m32c/m32c.c (m32c_reg_class_from_constraint): Don't
1988         default the Rcr, Rcl, Raw, and Ral constraints.  Add Ra0 and Ra1.
1989         Fail for unrecognized R* constraints.
1990         (m32c_cannot_change_mode_class): Be more picky about pseudos.
1991         (m32c_const_ok_for_constraint_p): Add Imb, Imw, and I00.
1992         (m32c_extra_constraint_p2): Allow (mem (plus (plus fb int) int)).
1993         Add Sp constraint.
1994         (m32c_init_libfuncs): New.
1995         (m32c_legitimate_address_p): Add debug wrapper.
1996         (m32c_rtx_costs): New.
1997         (m32c_address_cost): New.
1998         (conversions): Add 'B' prefix.
1999         (m32c_print_operand): 'h' and 'H' pick lower and upper halves of
2000         operands, or word regnames for QI operands.  'B' prints bit
2001         position.
2002         (m32c_expand_setmemhi): New.
2003         (m32c_expand_movmemhi): New.
2004         (m32c_expand_movstr): New.
2005         (m32c_expand_cmpstr): New.
2006         (m32c_prepare_shift): Shift counts are limited to 16 bits at a time.
2007         (m32c_expand_neg_mulpsi3): Handle non-ints.
2008         (m32c_cmp_flg_0): New.
2009         (m32c_expand_movcc): New.
2010         (m32c_expand_insv): New.
2011         (m32c_scc_pattern): New.
2012         * config/m32c/m32c.h (reg classes): Add AO_REGS and A1_REGS.  Take
2013         a0/a1 out of SIregs.
2014         (STORE_FLAG_VALUE): New.
2015         * config/m32c/m32c.md: Add unspecs for string moves.  Define various mode and
2016         code macros.
2017         (no_insn): New.
2018         * config/m32c/mov.md: Make constraints more liberal.
2019         (zero_extendqihi2): Optimize r0/r1 case.
2020         * config/m32c/muldiv.md (mulpsi3): Check for intvals.
2021         * config/m32c/predicates.md (m32c_any_operand): New.
2022         (m32c_nonimmediate_operand): New.
2023         (m32c_hl_operand): New.
2024         (m32c_r3_operand): New.
2025         (ap_operand): New.
2026         (ma_operand): New.
2027         (memsym_operand): New.
2028         (memimmed_operand): New.
2029         (a_qi_operand): New.
2030         (m32c_eqne_operator): New.
2031         (m32c_1bit8_operand): New.
2032         (m32c_1bit16_operand): New.
2033         (m32c_1mask8_operand): New.
2034         (m32c_1mask16_operand): New.
2035         * config/m32c/blkmov.md: New file.
2036         * config/m32c/t-m32c (MD_FILES): Add blkmov.
2037
2038 2006-03-08  Andreas Tobler  <a.tobler@schweiz.ch>
2039
2040         * dwarf2out.c (expand_builtin_dwarf_sp_column): Make dwarf_regnum
2041         unsigned to fix signed/unsigned comparison issue in
2042         DWARF2_FRAME_REG_OUT.
2043         (expand_builtin_init_dwarf_reg_sizes): Make i unsigned to fix signed/
2044         unsigned comparison issue in DWARF2_FRAME_REG_OUT.
2045
2046         * tree-ssa-operands.c (finalize_ssa_def_ops): Move the declaration
2047         of ptr into the ENABLE_CHECKING section.
2048
2049 2006-03-08  Jeff Law  <law@redhat.com>
2050
2051         * tree-vrp.c (infer_value_range): Only count pointer uses
2052         and dereferences if -fdelete-null-pointer-checks is enabled.
2053
2054         * tree-vrp.c (find_assert_locations): Infer value ranges for
2055         single use pointers, but do not create ASSERT_EXPRs for them.
2056         When a non-null range is inferred for a pointer, backwards
2057         propagate that range to other equivalent pointers through the
2058         use-def chain.
2059
2060 2006-03-08  Paolo Bonzini  <bonzini@gnu.org>
2061
2062         PR bootstrap/26500
2063         * Makefile.in (dvi, html, install-info): Invoke the corresponding
2064         language hook targets.
2065         * ada/Make-lang.in, cp/Make-lang.in, objc/Make-lang.in,
2066         objcp/Make-lang.in: Create stub rules for dvi, html, install-info
2067         if language hook targets were missing.
2068
2069 2006-03-07  Zdenek Dvorak <dvorakz@suse.cz>
2070
2071         * tree-ssa-opfinalize.h: Removed.
2072         * Makefile.in (tree-ssa-operands.o): Remove tree-ssa-opfinalize.h
2073         dependency.
2074         * tree-ssa-operands.c: Do not include tree-ssa-opfinalize.h.
2075         (ALLOC_OPTYPE, APPEND_OP_AFTER, MOVE_HEAD_AFTER, MOVE_HEAD_TO_FREELIST,
2076         INITIALIZE_USE, add_def_op, add_use_op, add_vuse_op, add_maydef_op,
2077         add_mustdef_op, finalize_ssa_def_ops, finalize_ssa_use_ops,
2078         finalize_ssa_v_may_def_ops, finalize_ssa_vuse_ops,
2079         finalize_ssa_v_must_def_ops): New.
2080
2081 2006-03-07  Kenneth Zadeck <zadeck@naturalbridge.com>
2082
2083         * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong
2084         block as parameter.
2085
2086 2006-03-07  Geoffrey Keating  <geoffk@apple.com>
2087
2088         * varasm.c (assemble_end_function): Say that 'fnname' is unused.
2089
2090         * config/i386/i386.c (ix86_delegitimize_address): Handle Darwin
2091         addresses with offsets; reorganize.
2092
2093         * dwarf2out.c (DWARF2_FRAME_REG_OUT): Move up in file.
2094         (expand_builtin_dwarf_sp_column): Call DWARF2_FRAME_REG_OUT.
2095         (expand_builtin_init_dwarf_reg_sizes): Likewise.
2096
2097 2006-03-08  David Billinghurst <David.Billinghurst@riotinto.com>
2098
2099         PR target/26588
2100         * config/i386/cygwin.h (GOMP_SELF_SPECS): Define.
2101
2102 2006-03-08  Ben Elliston  <bje@au.ibm.com>
2103
2104         * config/fp-bit.h (CMPtype): Typedef to a word mode integer.
2105
2106 2006-03-07  Aldy Hernandez  <aldyh@redhat.com>
2107
2108         PR gomp/26238
2109         * doc/passes.texi (Tree-SSA passes): Document omp lowering and
2110         expansion.
2111
2112 2006-03-07  Richard Guenther  <rguenther@suse.de>
2113
2114         PR tree-optimization/26587
2115         * tree-ssa-structalias.c (handle_ptr_arith): Handle MINUS_EXPR.
2116
2117 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
2118
2119         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
2120
2121 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
2122
2123         * hooks.c (hook_bool_mode_rtx_true): New function.
2124         * hooks.h (hook_bool_mode_rtx_true): Declare.
2125         * toplev.c (compile_file): Call output_shared_constant_pool.
2126         * varasm.c (shared_constant_pool): New variable.
2127         (assemble_start_function, assemble_end_function): Remove arguments
2128         from call to output_constant_pool.
2129         (create_constant_pool): New function, split out from...
2130         (init_varasm_status): ...here.
2131         (force_const_mem): Choose between the shared and per-function constant
2132         pools.  Set current_function_uses_const_pool when reusing old entries
2133         as well as when creating new ones.
2134         (mark_constant): Ignore data argument.
2135         (mark_constants): Remove pool argument.
2136         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
2137         to decide whether the function uses a constant pool.
2138         (output_constant_pool_contents): New function, split out from...
2139         (output_constant_pool): ...here.
2140         (output_shared_constant_pool): New function.
2141         (init_varasm_once): Initialize shared_constant_pool.
2142         * output.h (output_constant_pool): Delete.
2143         (output_shared_constant_pool): Declare.
2144         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
2145         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
2146
2147 2006-03-06  Nick Clifton  <nickc@redhat.com>
2148
2149         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
2150         flag_strength_reduce.
2151
2152 2006-03-06  Ben Elliston  <bje@au.ibm.com>
2153
2154         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
2155         x86_64-*-linux* configurations.
2156
2157         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
2158         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
2159
2160 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2161
2162         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
2163         Remove.
2164         * basic-block.h: Remove the extern for
2165         rediscover_loops_after_threading.
2166
2167         * cfgloop.c (cancel_loop): Make it static.
2168         * cfgloop.h: Remove the prototype for cancel_loop.
2169
2170         * flow.c (recompute_reg_usage): Make it static.
2171         * rtl.h: Remove the prototype for recompute_reg_usage.
2172
2173         * function.c (use_return_register): Make it static.
2174         * function.h: Remove the prototype.
2175
2176 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2177
2178         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
2179         Remove.
2180         * recog.h: Remove the prototype for
2181         validate_change_maybe_volatile.
2182
2183 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2184
2185         * rtlanal.c (replace_reg): Remove.
2186         * rtl.h: Remove the prototype for replace_reg.
2187
2188 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
2189
2190         * regclass.c (reg_scan_update): Remove.
2191         (reg_scan_mark_refs): Remove the last argument.
2192         * rtl.h: Remove the prototype for reg_scan_update.
2193
2194 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2195
2196         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
2197         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
2198         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
2199         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
2200         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
2201         loop-invariant.c, omp-low.c, opts.c, passes.c,
2202         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
2203         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
2204         tree-ssa-structalias.c, tree-ssa-threadedge.c,
2205         tree-ssa-threadupdate.c, tree-vect-patterns.c,
2206         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
2207         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
2208
2209 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2210
2211         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
2212         * dwarf2out.h: Remove the prototype for
2213         dwarf2out_add_library_unit_info.
2214
2215 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2216
2217         * tree.c (add_var_to_bind_expr): Remove.
2218         * tree.h: Remove the prototype for add_var_to_bind_expr.
2219
2220 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2221
2222         * regclass.c (n_non_fixed_regs): Remove.
2223         (init_reg_sets_1, globalize_reg): Remove all uses of
2224         n_non_fixed_regs.
2225         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
2226
2227 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2228
2229         * rtlanal.c (insns_safe_to_move_p): Remove.
2230         * rtl.h: Remove the prototype for insns_safe_to_move_p.
2231
2232 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
2233
2234         * expmed.c (expand_mult_add): Remove.
2235         * expr.h: Remove the prototype for expand_mult_add.
2236
2237 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
2238
2239         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
2240         and REG_SAVED_VAL_EXP constants.
2241         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
2242         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
2243         Handle regs stored by value.
2244         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
2245         (execute_cfa_program): Handle DW_CFA_val_offset,
2246         DW_CFA_val_offset_sf and DW_CFA_val_expression.
2247         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
2248         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
2249         (uw_install_context_1): Handle target regs stored by value.
2250
2251 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
2252
2253         * tree-sra.c (tree_sra): Return todoflags;
2254         (generate_one_element): Set TODO_update_smt_usage if needed.
2255         (pass_sra): Remove TODO_update_smt_usage.
2256         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
2257         parameter.
2258         (tree_ssa_forward_propagate_single_use_vars): Return
2259         TODO_update_smt_usage if we need to update SMT usage.
2260         (pass_forwprop): Remove TODO_update_smt_usage.
2261
2262 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
2263
2264         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
2265         (correct_use_link): Remove reference to get_stmt_operands.
2266         (update_stmt_operands): Likewise.
2267         (get_modify_expr_operands): New function factored out of
2268         parse_ssa_operands and get_expr_operands.
2269         Try to create V_MUST_DEFs for LHS by default.
2270         (get_expr_operands) <case MODIFY_EXPR>: Call
2271         get_modify_expr_operands.
2272         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
2273         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
2274         (parse_ssa_operands) <case MODIFY_EXPR>: Call
2275         get_modify_expr_operands.
2276
2277 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
2278
2279         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
2280         * tree-flow.h: Remove the prototype for
2281         referenced_var_lookup_if_exists.
2282
2283 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
2284
2285         PR rtl-optimization/26345
2286         PR target/19061
2287         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
2288
2289 2006-03-03  Roger Sayle  <roger@eyesopen.com>
2290
2291         PR tree-optimization/26524
2292         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
2293         fold_convert to create a constant of the appropriate type.
2294
2295 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
2296
2297         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2298         SYMBOL_REF_IN_BLOCK_P.
2299         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
2300         of SYMBOL_FLAG_IN_BLOCK.
2301         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
2302         instead of SYMBOL_REF_IN_BLOCK_P.
2303         * explow.c (use_anchored_address): Likewise.
2304         * rtl.c (rtx_size): Likewise.
2305         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
2306         instead of SYMBOL_FLAG_IN_BLOCK.
2307         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2308         SYMBOL_REF_IN_BLOCK_P.
2309         (assemble_variable): Likewise.
2310         (output_constant_def_contents): Likewise.
2311         (output_constant_pool): Likewise.
2312         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
2313         instead of SYMBOL_FLAG_IN_BLOCK.
2314         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2315         SYMBOL_REF_IN_BLOCK_P.
2316         (SYMBOL_REF_BLOCK): Likewise.
2317         (SYMBOL_REF_OFFSET): Likewise.
2318         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
2319         SYMBOL_REF_IN_BLOCK_P.
2320         (SYMBOL_FLAG_IN_BLOCK): Replace with...
2321         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
2322         (SYMBOL_REF_IN_BLOCK_P): Replace with...
2323         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
2324
2325 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
2326
2327         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
2328
2329 2006-03-02  Roger Sayle  <roger@eyesopen.com>
2330
2331         * simplify-rtx.c (simplify_unary_operation): When simplifying
2332         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
2333         that we perform the right shift in the appropriate mode, and
2334         then extend or truncate the result to requested mode.
2335
2336 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
2337
2338         * gengtype.c (main): Handle double_int type.
2339         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
2340         * double-int.c: New file.
2341         * double-int.h: New file.
2342         * system.h: Include doubleint.h.
2343         * Makefile.in (SYSTEM_H): Include double-int.h.
2344         (double-int.o): Add.
2345
2346 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
2347
2348         PR bootstrap/26478
2349         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
2350         copying over it.
2351
2352 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
2353
2354         * tree-vrp.c (remove_range_assertions): Do not update statements
2355         unnecessarily.
2356
2357 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
2358
2359         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
2360         cleanup.
2361         * gcse.c (rest_of_handle_gcse): Ditto.
2362         * except.c (gate_handle_eh): Ditto.
2363         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
2364         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
2365
2366 2006-03-02  Eric Christopher  <echristo@apple.com>
2367
2368         * config/i386/i386.c (machopic_output_stub): Add indirection to
2369         jump.
2370
2371 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
2372
2373         * loop.c: Removed.
2374
2375 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
2376
2377         Sun Niagara specific optimizations.
2378         * config.gcc: Recognize niagara as target.
2379         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
2380         (TARGET_CPU_niagara): Define.
2381         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
2382         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
2383         (CPP_CPU_SPEC): Handle -mcpu=niagara.
2384         (ASM_CPU_SPEC): Likewise.
2385         (PROCESSOR_NIAGARA): New enum entry.
2386         (REGISTER_MOVE_COST): Handle Niagara.
2387         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
2388         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
2389         (sparc_override_options): Recognize "niagara", set appropriate
2390         default MASK_* values for it, and align functions to 32-bytes
2391         by default just like ULTRASPARC/ULTRASPARC3.
2392         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
2393         (sparc64_initialize_trampoline): Likewise.
2394         (sparc_use_sched_lookahead): Use zero for niagara.
2395         (sparc_issue_rate): Use one for niagara.
2396         * config/sparc/niagara.md: New file.
2397         * config/sparc/sparc.md: Include it.
2398         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
2399         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
2400         when default cpu is niagara.
2401         (CPP_CPU_SPEC): Handle -mcpu=niagara.
2402         (ASM_CPU_SPEC): Likewise.
2403         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
2404         when default cpu is niagara.
2405         (ASM_CPU_SPEC): Handle -mcpu=niagara.
2406         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
2407         just like v9/ultrasparc/ultrasparc3.
2408         * doc/invoke.texi: Add documentation for "niagara" and improve
2409         existing documentation for ultrasparc variants.
2410
2411 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
2412
2413         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
2414
2415 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
2416
2417         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
2418         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
2419         and say that only one is needed.
2420         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
2421         * target.h (have_switchable_bss_sections): New hook.
2422         * explow.c (use_anchored_address): Check that the symbol is in a block.
2423         * varasm.c (tls_comm_section, comm_section, lcomm_section)
2424         (bss_noswitch_section): New variables.
2425         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
2426         (get_noswitch_section): New function.
2427         (get_block_for_section): Allow SECT to be null.
2428         (unlikely_text_section_p): Use SECTION_STYLE.
2429         (bss_initializer_p): New function.
2430         (get_variable_section): Move earlier in file.  Take a new argument,
2431         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
2432         Return one of the new *_sections in such cases.
2433         (get_block_for_decl): New function, extracting some logic from
2434         use_blocks_for_decl_p.
2435         (change_symbol_section): Remove in favor of...
2436         (change_symbol_block): ...this new function.
2437         (use_blocks_for_decl_p): Remove checks now performed by
2438         get_block_for_decl.
2439         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
2440         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
2441         (emit_local, emit_bss, emit_common): ...these new functions.
2442         Return true if the alignment was honored.
2443         (emit_tls_common): New function.
2444         (asm_emit_uninitialised): Delete.
2445         (assemble_variable_noswitch): New function, split out from...
2446         (assemble_variable): ...here.  Don't make decisions about common
2447         variables here.  Globalize all public decls that go into non-common
2448         sections.  Check whether SYMBOL_REF_BLOCK is null.
2449         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
2450         (output_constant_pool): Likewise.
2451         (init_varasm_once): Initialize the new section variables.
2452         (have_global_bss_p): New function.
2453         (categorize_decl_for_section): Use bss_initializer_p.
2454         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
2455         (place_block_symbol): Assert that the symbol must be in a block.
2456         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
2457         (TARGET_INITIALIZER): Include it.
2458         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
2459         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
2460         (SECTION_MACH_DEP): Bump by two.
2461         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
2462         (unnamed_section): Mention SECTION_UNNAMED in comment.
2463         (named_section): Likewise SECTION_NAMED.
2464         (noswitch_section_callback): New type.
2465         (noswitch_section): New structure.
2466         (section): Add a noswitch_section alternative.
2467         (SECTION_STYLE): New macro.
2468         (tls_comm_section, comm_section, lcomm_section): Declare.
2469         (bss_noswitch_section, have_global_bss_p): Declare.
2470         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
2471         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
2472         Override.
2473         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
2474         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
2475         Override.
2476
2477 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
2478
2479         * gcc/tree-vrp.c (execute_vrp): Return value.
2480         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
2481         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
2482         * gcc/tree-complex.c (tree_lower_complex): Ditto.
2483         (tree_lower_complex_O0): Ditto.
2484         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
2485         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
2486         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
2487         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
2488         (execute_tail_calls): Ditto.
2489         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2490         * gcc/tree.h (init_function_for_compilation): Ditto.
2491         * gcc/ipa-cp.c (ipcp_driver): Ditto.
2492         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
2493         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
2494         * gcc/final.c (compute_alignments): Ditto.
2495         (rest_of_handle_final): Ditto.
2496         (rest_of_handle_shorten_branches): Ditto.
2497         (rest_of_clean_state): Ditto.
2498         * gcc/omp-low.c (execute_expand_omp): Ditto.
2499         (execute_lower_omp): Ditto.
2500         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
2501         * gcc/ipa-reference.c (static_execute): Ditto.
2502         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
2503         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
2504         (rest_of_handle_machine_reorg): Ditto.
2505         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
2506         * gcc/flow.c (recompute_reg_usage): Ditto.
2507         (rest_of_handle_remove_death_notes): Ditto.
2508         (rest_of_handle_life): Ditto.
2509         (rest_of_handle_flow2): Ditto.
2510         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
2511         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
2512         (do_ssa_store_ccp): Ditto.
2513         (execute_fold_all_builtins): Ditto.
2514         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
2515         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
2516         * gcc/ipa-pure-const.c (static_execute): Ditto.
2517         * gcc/cse.c (rest_of_handle_cse): Ditto.
2518         (rest_of_handle_cse2): Ditto.
2519         * gcc/web.c (rest_of_handle_web): Ditto.
2520         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
2521         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
2522         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
2523         * gcc/tree-nrv.c (tree_nrv): Ditto.
2524         (execute_return_slot_opt): Ditto.
2525         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
2526         (create_structure_vars): Ditto.
2527         * gcc/loop-init.c (rtl_loop_init): Ditto.
2528         (rtl_loop_done): Ditto.
2529         (rtl_move_loop_invariants): Ditto.
2530         (rtl_unswitch): Ditto.
2531         (rtl_unroll_and_peel_loops): Ditto.
2532         (rtl_doloop): Ditto.
2533         * gcc/gimple-low.c (lower_function_body): Ditto.
2534         (mark_used_blocks): Ditto.
2535         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
2536         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
2537         (cgraph_early_inlining): Ditto.
2538         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
2539         * gcc/jump.c (cleanup_barriers): Ditto.
2540         (purge_line_number_notes): Ditto.
2541         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
2542         (rest_of_handle_if_after_reload): Ditto.
2543         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
2544         (tree_ssa_loop_im): Ditto.
2545         (tree_ssa_loop_unswitch): Ditto.
2546         (tree_vectorize): Ditto.
2547         (tree_linear_transform): Ditto.
2548         (tree_ssa_loop_ivcanon): Ditto.
2549         (tree_ssa_empty_loop): Ditto.
2550         (tree_ssa_loop_bounds): Ditto.
2551         (tree_complete_unroll): Ditto.
2552         (tree_ssa_loop_prefetch): Ditto.
2553         (tree_ssa_loop_ivopts): Ditto.
2554         (tree_ssa_loop_done): Ditto.
2555         * gcc/predict.c (tree_estimate_probability): Ditto.
2556         * gcc/recog.c (split_all_insns_noflow): Ditto.
2557         (rest_of_handle_peephole2): Ditto.
2558         (rest_of_handle_split_all_insns): Ditto.
2559         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
2560         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
2561         (rest_of_handle_stack_adjustments): Ditto.
2562         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
2563         * gcc/function.c (instantiate_virtual_regs): Ditto.
2564         (init_function_for_compilation): Ditto.
2565         (rest_of_handle_check_leaf_regs): Ditto.
2566         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
2567         (rest_of_handle_gcse): Ditto.
2568         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
2569         * gcc/alias.c (rest_of_handle_cfg): Ditto.
2570         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
2571         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
2572         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
2573         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
2574         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
2575         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
2576         * gcc/except.c (set_nothrow_function_flags): Ditto.
2577         (convert_to_eh_region_ranges): Ditto.
2578         (rest_of_handle_eh): Ditto.
2579         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
2580         (remove_unnecessary_notes): Ditto.
2581         * gcc/except.h (set_nothrow_function_flags): Ditto.
2582         (convert_to_eh_region_ranges): Ditto.
2583         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
2584         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
2585         * gcc/tree-ssa-pre.c (do_pre): Ditto.
2586         (execute_fre): Ditto.
2587         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
2588         (rest_of_handle_jump2): Ditto.
2589         * gcc/tree-sra.c (tree_sra): Ditto.
2590         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
2591         (execute_mudflap_function_decls): Ditto.
2592         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
2593         (do_store_copy_prop): Ditto.
2594         * gcc/ipa-prop.h (ipcp_driver): Ditto.
2595         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
2596         * gcc/tree-ssa-forwprop.c
2597         (tree_ssa_forward_propagate_single_use_vars): Ditto.
2598         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
2599         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
2600         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
2601         (execute_late_warn_uninitialized): Ditto.
2602         * gcc/rtl.h (cleanup_barriers): Ditto.
2603         (split_all_insns_noflow): Ditto.
2604         (purge_line_number_notes): Ditto.
2605         (unshare_all_rtl): Ditto.
2606         (remove_unnecessary_notes): Ditto.
2607         (recompute_reg_usage): Ditto.
2608         (variable_tracking_main): Ditto.
2609         * gcc/integrate.c (emit_initial_value_sets): Ditto.
2610         * gcc/integrate.h (emit_initial_value_sets): Ditto.
2611         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
2612         (execute_free_cfg_annotations): Ditto.
2613         (execute_fixup_cfg): Ditto.
2614         (execute_cleanup_cfg_pre_ipa): Ditto.
2615         (execute_cleanup_cfg_post_optimizing): Ditto.
2616         (execute_init_datastructures): Ditto.
2617         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
2618         * gcc/combine.c (rest_of_handle_combine): Ditto.
2619         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
2620         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
2621         (rest_of_handle_reorder_blocks): Ditto.
2622         (rest_of_handle_partition_blocks): Ditto.
2623         * gcc/var-tracking.c (variable_tracking_main): Ditto.
2624         * gcc/tree-profile.c (tree_profiling): Ditto.
2625         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
2626         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
2627         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
2628         (rest_of_handle_sched2): Ditto.
2629         * gcc/basic-block.h (free_bb_insn): Ditto.
2630         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
2631         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
2632         (remove_useless_stmts): Ditto.
2633         (split_critical_edges): Ditto.
2634         (execute_warn_function_return): Ditto.
2635         (execute_warn_function_noreturn): Ditto.
2636         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
2637         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
2638         * gcc/passes.c (execute_one_pass): Run additional
2639         todos returned by execute function.
2640         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
2641         return a value.
2642
2643 2006-03-02  Richard Guenther  <rguenther@suse.de>
2644
2645         * tree-ssa-alias.c (find_used_portions): Consider taking
2646         the address as making the variable not write-only.
2647
2648 2006-03-02  Nick Clifton  <nickc@redhat.com>
2649
2650         * config.gcc (default_use_cxa_atexit): Extend the description of
2651         this configure variable.  Set its default value to "yes" for
2652         Linux, NetBSD and ELF targets on the assumption that they will
2653         use C libraries with the __cxa_atexit function.
2654
2655 2006-03-02  Ben Elliston  <bje@au.ibm.com>
2656
2657         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
2658         parameter as unused to suppress a build warning.
2659
2660 2006-03-02  Ben Elliston  <bje@au.ibm.com>
2661
2662         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
2663         config/dfp-bit.c.
2664
2665 2006-03-01  Roger Sayle  <roger@eyesopen.com>
2666
2667         PR other/26489
2668         * gthr-posix.h (__gthrw2): Define to take three parameters, the
2669         declared name, the weak reference name, and the typeof name.
2670         (__gthrw): Avoid expanding the declared name suffix.
2671         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
2672
2673 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
2674
2675         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
2676         from DWARF 3.
2677         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
2678         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
2679         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
2680         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
2681         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
2682         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
2683         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
2684         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
2685         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
2686         DW_DS_leading_separate, DW_DS_trailing_separate): New.
2687         (DW_END_default, DW_END_big, DW_END_little): New.
2688         (DW_END_lo_user, DW_END_hi_user): Define.
2689         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
2690         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
2691         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
2692         DW_LANG_D): New.
2693
2694 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
2695
2696         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
2697         Update all users.
2698         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
2699         Update all users.
2700         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
2701         Update all users.
2702         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
2703         Update all users.
2704         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
2705         to 'symbol_mem_tag'.
2706         Update all users.
2707         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
2708         rename.
2709
2710 2006-03-01  Roger Sayle  <roger@eyesopen.com>
2711
2712         * builtins.c (fold_builtin_copysign): Delete unreachable code.
2713
2714 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
2715
2716         PR target/25761
2717         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
2718         MACHO_DYNAMIC_NO_PIC_P.
2719         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
2720
2721 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
2722
2723         PR target/26389
2724         * config/darwin-protos.h (darwin_asm_output_anchor):
2725         Declare.
2726         * config/darwin-sections.def (cstring_section):
2727         Add SECTION_MERGE to the flags.
2728         (literal4_section): Likewise.
2729         (literal8_section): Likewise.
2730         (objc_selector_refs_section): Likewise.
2731         (objc_cls_refs_section): Likewise.
2732         * config/darwin.c (darwin_asm_output_anchor): New
2733         function.
2734         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
2735
2736 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
2737
2738         Fix PR tree-optimization/26443
2739         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
2740         to todo and PROP_tmt_usage to properties_destroyed.
2741         * tree-ssa-ccp.c (pass_ccp): Ditto.
2742         (pass_store_ccp): Ditto.
2743         * tree-ssa-dom.c (pass_dominator): Ditto.
2744
2745 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
2746
2747         * tree-ssa-operands.c: Cleanup whitespace.
2748         (get_asm_expr_operands): Move before first invocation.
2749         (get_indirect_ref_operands): Likewise.
2750         (get_tmr_operands): Likewise.
2751         (get_call_expr_operands): Likewise.
2752         (append_def): Likewise.
2753         (append_use): Likewise.
2754         (append_v_may_def): Likewise.
2755         (append_v_must_def): Likewise.
2756         (add_call_clobber_ops): Likewise.
2757         (add_call_read_ops): Likewise.
2758         (add_stmt_operand): Likewise.
2759         (add_virtual_operand): Likewise.
2760         (build_ssa_operands): Likewise.
2761
2762 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
2763
2764         PR middle-end/26022
2765         Revert:
2766         PR middle-end/24437
2767         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
2768         with a call expr to ...
2769         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
2770
2771 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
2772
2773         * tree-vrp.c (extract_range_from_assert): Remove special
2774         handling for types with super-types.
2775
2776 2006-03-01  Ben Elliston  <bje@au.ibm.com>
2777
2778         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
2779         and powerpc64-*-linux* configurations.
2780         * config/t-dfprules: New file.
2781
2782         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
2783         Compile dfp-bit.c from the source directory using -DWIDTH and
2784         $DFP_CFLAGS to control the compilation of that file, rather than
2785         generating width-specific versions in the build directory.
2786         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
2787         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
2788
2789 2006-02-28  Zack Weinberg  <zackw@panix.com>
2790
2791         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
2792         continues to work.
2793
2794 2006-02-28  Eric Christopher  <echristo@apple.com>
2795
2796         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
2797         Set up IN_LIBGCC definition of TARGET_64BIT.
2798         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
2799
2800 2006-02-28  Roger Sayle  <roger@eyesopen.com>
2801
2802         PR middle-end/14752
2803         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
2804         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
2805         cases via the construction of "expr != 0".
2806
2807 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
2808
2809         * alias.c (alias_invariant, alias_invariant_size): Remove.
2810         (record_base_value): Remove.
2811         (memrefs_conflict_p): Don't look at alias_invariant.
2812         (end_alias_analysis): Don't free it.
2813         * alias.h (record_base_value): Remove prototype.
2814
2815 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
2816             Adam Nemet  <anemet@caviumnetworks.com>
2817
2818         * rtl.h (truncated_to_mode): Declare it.
2819         (struct rtl_hooks): Add reg_truncated_to_mode hook.
2820         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
2821         (RTL_HOOKS_INITIALIZER): Include it.
2822         * rtlhooks.c (reg_truncated_to_mode_general): New function.
2823         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
2824         reg_truncated_to_mode.
2825         * rtlanal.c (truncated_to_mode): Define it.
2826         * simplify-rtx.c (simplify_unary_operation_1): Use it.
2827
2828 2006-02-28  Jeff Law  <law@redhat.com>
2829
2830         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
2831         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
2832         the range allowed by TYPE_PRECISION.
2833
2834         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
2835
2836 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
2837
2838         PR tree-optimization/26419
2839         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
2840         values of n.
2841
2842 2006-02-27  Zack Weinberg  <zackw@panix.com>
2843
2844         * doc/md.texi: Fix typo in previous change.
2845
2846 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
2847
2848         * df.c: Remove.
2849
2850 2006-02-27  Zack Weinberg  <zackw@panix.com>
2851
2852         * rtl.def (define_constraint, define_register_constraint)
2853         (define_memory_constraint, define_address_constraint): New MD forms.
2854         * gensupport.c (process_rtx): Put define_constraint etc on the
2855         predicate queue.
2856         * genpreds.c (process_define_predicate): Adjust comment.  Validate
2857         the name, and call validate_exp to validate the expression.
2858         (mark_mode_tests, write_extract_subexp): Can assume correct input.
2859         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
2860         all callers changed.
2861         (validate_exp, needs_variable, struct constraint_data)
2862         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
2863         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
2864         (const_dbl_constraints, constraint_max_namelen)
2865         (have_register_constraints, have_memory_constraints)
2866         (have_address_constraints, have_address_constraints)
2867         (have_extra_constraints, have_const_int_constraints)
2868         (have_const_dbl_constraints, mangle, add_constraint)
2869         (process_define_constraint, process_define_register_constraint)
2870         (write_enum_constraint_num, write_lookup_constraint)
2871         (write_insn_constraint_len, write_regclass_for_constraint)
2872         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
2873         (write_insn_extra_memory_constraint)
2874         (write_insn_extra_address_constraint)
2875         (write_satisfies_constraint_fns): New.
2876         (write_tm_preds_h): If we have new-style constraint definitions,
2877         prototype the functions generated from them, and define the
2878         old constraint interface (still used by generic code) in terms of
2879         those functions.
2880         (write_insn_preds_c): If we have new-style constraint definitions,
2881         generate all relevant functions from those definitions.
2882         (main): Handle define_constraint etc.
2883         * genoutput.c (struct constraint_data, indep_constraints)
2884         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
2885         (mdep_constraint_len): New data structures and functions, defined
2886         #ifdef USE_MD_CONSTRAINTS.
2887         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
2888         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
2889         use new logic to validate operand constraints against constraint
2890         definitions.
2891         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
2892         defined.
2893         * defaults.h: If none of the old-style constraint macros are
2894         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
2895         old-style macros; and poison REG_CLASS_FROM_LETTER,
2896         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
2897         EXTRA_CONSTRAINT.
2898         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
2899         * doc/md.texi: Document new constraint-definition mechanism and the
2900         C interface it provides.  Remove references to old mechanism
2901         elsewhere in the document.
2902         (Machine Constraints): Use pathnames relative to gcc directory,
2903         i.e. config/ARCH/FILE.  Change i386 section to refer to
2904         config/i386/predicates.md; update that section to match docstrings.
2905         * doc/tm.texi: Move all documentation of the old constraint-
2906         definition macros to their own section, clearly mark as obsolete.
2907
2908         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
2909         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
2910         definitions.
2911         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
2912         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
2913         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
2914         constraint strings.
2915         (splits and peepholes): Use satisfies_constraint_*.
2916         * config/i386/i386.c (memory_address_length)
2917         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
2918
2919 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
2920
2921         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
2922         scalar operation to be put back into the loop.
2923
2924 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
2925
2926         PR other/26208
2927         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
2928         (extract_cie_info): Handle S flag in augmentation string.
2929         (execute_cfa_program): If context->signal_frame, execute also
2930         fs->pc == context->ra instructions.
2931         (uw_frame_state_for): If context->signal_frame, don't subtract one
2932         from context->ra to find FDE.
2933         (uw_update_context_1): Set context->signal_frame to
2934         fs->signal_frame.
2935         (_Unwind_GetIPInfo): New function.
2936         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
2937         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
2938         of _Unwind_GetIP.
2939         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
2940         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
2941         * unwind-compat.c (_Unwind_GetIPInfo): New function.
2942         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
2943         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
2944         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
2945         * config/i386/linux-unwind.h (x86_fallback_frame_state,
2946         x86_64_fallback_frame_state): Set fs->signal_frame.
2947         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
2948         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
2949         (frob_update_context): Likewise.  Workaround missing S flag in
2950         Linux 2.6.12 - 2.6.16 kernel vDSOs.
2951         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
2952         Remove the psw_addr + 1 hack.
2953
2954 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
2955
2956         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
2957         with aggregates here.
2958         (find_func_aliases): Remove code for &<aggregate> from here.
2959
2960 2006-02-26  Roger Sayle  <roger@eyesopen.com>
2961
2962         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
2963         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
2964         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
2965         as (X & C) ne/eq 0.
2966
2967 2006-02-26  Roger Sayle  <roger@eyesopen.com>
2968
2969         PR middle-end/19983
2970         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
2971
2972 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
2973
2974         * opts.c (decode_options): Do not handle flag_strength_reduce.
2975         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
2976         and OPT_fstrength_reduce.
2977         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
2978         flag_prefetch_loop_arrays for being nonzero.
2979         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
2980         no-ops.
2981         (fprefetch-loop-arrays-rtl): Removed.
2982         (flag_prefetch_loop_arrays): Do not specify the value.
2983
2984         * doc/passes.texi: Update documentation of loop optimizer
2985         passes.
2986         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
2987         -frerun-loop-opt): Remove.
2988
2989 2006-02-26  Richard Guenther  <rguenther@suse.de>
2990
2991         PR tree-optimization/26421
2992         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
2993         in function calls that are ADDR_EXPRs as using the whole structure.
2994
2995 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
2996
2997         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
2998         * tree-pass.h (pass_loop_optimize): Remove.
2999         * passes.c (pass_loop_optimize): Never run it.
3000         * toplev.c (backend_init): Don't call init_loop.
3001         * opts.c (flag_loop_optimize_set): Remove.
3002         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
3003         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
3004         the old RTL loop optimizer when profiling enabled.
3005         * predict.c (tree_estimate_probability): Always strip builtin_expect.
3006         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
3007         pre-headers for the sake of the old RTL loop optimizer.
3008         * Makefile.in: Remove all references to loop.o.
3009
3010         * doc/invoke.texi: Remove all references to -floop-optimize
3011         and -frerun-loop-opt.
3012
3013 2006-02-26  Zack Weinberg  <zackw@panix.com>
3014
3015         * doc/md.texi (Machine Constraints): Refer to all files with paths
3016         relative to gcc directory (i.e. config/CPU/file).  Add missing
3017         @table @code ... @end table to M32C subsection.
3018
3019 2006-02-26  Roger Sayle  <roger@eyesopen.com>
3020
3021         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
3022         (X & 1) == 0.
3023         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
3024
3025 2006-02-26  Roger Sayle  <roger@eyesopen.com>
3026             James A. Morrison  <phython@gcc.gnu.org>
3027
3028         PR middle-end/21137
3029         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
3030         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
3031         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
3032         signedness of the shift operation.
3033
3034 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
3035
3036         PR tree-optimization/26359
3037         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
3038
3039 2006-02-25  Roger Sayle  <roger@eyesopen.com>
3040
3041         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
3042         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
3043         as X == 0, and some symmetry related transformations.
3044         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
3045
3046 2006-02-25  Roger Sayle  <roger@eyesopen.com>
3047
3048         PR middle-end/23673
3049         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
3050         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
3051         symmetry related transformations.  Fold (X^C1) == C2 as
3052         X == (C1^C2).
3053
3054 2006-02-25  Juergen Weigert  <jw@suse.de>
3055         Richard Guenther  <rguenther@suse.de>
3056
3057         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
3058
3059 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
3060
3061         * combine.c (gen_lowpart_or_truncate): Call
3062         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
3063
3064 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
3065
3066         * doc/invoke.texi: Move -fopenmp description to "Options for
3067         Code Generation".
3068         Remove reference to -lgomp.
3069
3070 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
3071
3072         * doc/install.texi: Require GNU tar version 1.14.
3073
3074 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
3075
3076         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
3077         * doc/invoke.texi (C++ Dialect Options): Document
3078         -fno-use-cxa-get-exception-ptr.
3079         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
3080         * configure: Regenerate.
3081         * c.opt (fuse-cxa-get-exception-ptr): New.
3082         * c-opts.c (c_common_handle_option): Handle
3083         OPT_fuse_cxa_get_exception_ptr.
3084         * c-common.c (flag_use_cxa_atexit): Update documentation.
3085         (flag_use_cxa_get_exception_ptr): New.
3086         * c-common.h (flag_use_cxa_get_exception_ptr): New.
3087         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
3088         documentation.
3089         (C_COMMON_OVERRIDE_OPTIONS): New.
3090
3091 2006-02-24  Roger Sayle  <roger@eyesopen.com>
3092
3093         PR middle-end/24952
3094         * combine.c (try_combine): Explicitly check whether GET_CODE is
3095         a SET or a CLOBBER, instead on checking that it isn't a USE.
3096
3097 2006-02-24  Roger Sayle  <roger@eyesopen.com>
3098
3099         * fold-const.c (fold_comparison): New subroutine of fold_binary
3100         containing transformations common to both the equality and
3101         ordering relational operators, factored out of fold_binary.
3102         (fold_binary): Separate out the equality operators (EQ_EXPR
3103         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
3104         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
3105         transformations common to both.
3106         (fold_div_compare): Fix latent bugs in the previously unreachable
3107         LT_EXPR and GE_EXPR cases.
3108
3109 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
3110
3111         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
3112         decl libname for clog to __clog on AIX.
3113
3114         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
3115
3116 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
3117
3118         PR target/26453
3119         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
3120         output traceback table for thunks.  Localise rs6000_stack_info call.
3121
3122 2006-02-23  Roger Sayle  <roger@eyesopen.com>
3123             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
3124
3125         * gthr-posix.h (__gthrw): Fix typo in comment.
3126
3127 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
3128
3129         * doc/cpp.texi (Character sets): Document that we do support
3130         input files to be in any character set.
3131
3132 2006-02-23  Jeff Law  <law@redhat.com>
3133
3134         * tree.h (PHI_ARG_NONZERO): Remove.
3135         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
3136         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
3137         node to the new node.
3138
3139         PR tree-optimization/26425
3140         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
3141         min/max, then assume its varying.
3142
3143 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
3144
3145         PR rtl-optimization/26316
3146         * rtlanal.c (enum may_trap_p_flags): New.
3147         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
3148         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
3149         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
3150         (may_trap_after_code_motion_p): New function.
3151         * loop-invariant.c (find_identical_invariants): Fix dump formating.
3152         (find_invariant_insn): Use may_trap_after_code_motion_p.
3153         * rtl.h (may_trap_after_code_motion_p): Declare.
3154
3155 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
3156
3157         * emit-rtl.c (immed_double_const): Cleanup.
3158
3159 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
3160
3161         Fix PR tree-optimization/26376
3162         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
3163         remove assert.
3164
3165 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
3166
3167         PR middle-end/26412
3168         * gimplify.c (omp_add_variable): Guard variable size decl test with
3169         DECL_SIZE (decl) check.
3170
3171 2006-02-23  Richard Guenther  <rguenther@suse.de>
3172
3173         PR middle-end/26439
3174         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
3175         like aggregate types.
3176
3177 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
3178
3179         * configure.ac: Add --with{,out}-long-double-128 configure option.
3180         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
3181         * configure: Rebuilt.
3182         * config.in: Rebuilt.
3183         * doc/install.texi (Options specification): Document
3184         --with-long-double-128.
3185
3186         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
3187         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
3188         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
3189         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
3190
3191 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
3192
3193         * config/s390/s390.c (override_options): Handle
3194         TARGET_DEFAULT_LONG_DOUBLE_128.
3195
3196         * config/alpha/alpha.c (override_options): Handle
3197         TARGET_DEFAULT_LONG_DOUBLE_128.
3198
3199         * config/sparc/sparc.c (sparc_override_options): Handle
3200         TARGET_DEFAULT_LONG_DOUBLE_128.
3201
3202 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
3203
3204         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
3205         (real-install-headers-tar, real-install-headers-cpio)
3206         (real-install-headers-cp): New targets.
3207
3208 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
3209
3210         * tree.h (variable_section): Delete.
3211         * varasm.c (variable_section): Delete.
3212
3213 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
3214
3215         * install.texi: Add notes on install.texi2html.
3216         (Building in parallel): Do not use footnotes.
3217
3218 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
3219
3220         PR libgomp/26234
3221         * doc/install.texi (Configuration): Document --disable-libgomp.
3222
3223 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
3224
3225         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
3226
3227 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
3228
3229         * config/i386/sse.md (vec_extractv2df_1_sse): New.
3230         (vec_extractv2df_0_sse): New.
3231
3232 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
3233
3234         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
3235         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
3236         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
3237         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
3238         to the result of the expression.
3239         (def_cfa_1): Adjust.
3240         (frame_pointer_cfa_offset): Rename to...
3241         (frame_pointer_fb_offset): ... this.  Adjust all uses.
3242         (convert_cfa_to_loc_list): Rename to...
3243         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
3244         Pass it on to build_cfa_loc.
3245         (compute_frame_pointer_to_cfa_displacement): Rename to...
3246         (compute_frame_pointer_to_fb_displacement): ... this.  New
3247         offset parameter.  Use it in computation.
3248         (gen_subprogram_die): Compute cfa_fb_offset with the new
3249         macro, and use it to compute the fb loc list and the
3250         displacement.
3251
3252 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
3253
3254         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
3255         replaced with register_operand.
3256         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
3257         non-DREG is expensive.
3258         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
3259         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
3260         involving memory.
3261
3262 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
3263
3264         * doc/install.texi2html: Use set -e.
3265
3266 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
3267
3268         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
3269         (ASM_OUTPUT_SHARED_LOCAL): Delete.
3270         * doc/invoke.texi (-fshared-data): Delete.
3271         * common.opt (fshared-data): Delete.
3272         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
3273         (assemble_static_space): Remove #if 0 code.
3274         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
3275         (ASM_OUTPUT_SHARED_LOCAL): Poison.
3276         * config/cris/cris.h: Remove FIXME.
3277
3278 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
3279
3280         * doc/sourcebuild.texi (Front End Directory): No more double-colon
3281         hooks.
3282
3283 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
3284
3285         PR middle-end/26379
3286         * combine.c (simplify_shift_const_1): Disable nested shifts
3287         optimization for vector shifts.
3288
3289 2006-02-20  Roger Sayle  <roger@eyesopen.com>
3290
3291         PR tree-optimization/26361
3292         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
3293         of unsigned integer types.
3294
3295 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
3296
3297         * tree-chrec.c (eq_evolutions_p): New.
3298         * tree-chrec.h (eq_evolutions_p): Declared.
3299         * tree-data-ref.c: Fix formatting.
3300         (datadep_stats, dependence_stats): New.
3301         (gcd): Moved...
3302         (print_direction_vector): New.
3303         (dump_data_dependence_relation): Use print_direction_vector.
3304         (object_analysis, create_data_ref): Handle COMPONENT_REF.
3305         (compute_subscript_distance): Static.
3306         (initialize_data_dependence_relation): Static.  Get the number
3307         of loops surrounding the references from the callers, and initialize
3308         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
3309         base_object_differ_p analyzers.
3310         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
3311         compute_overlap_steps_for_affine_1_2,
3312         analyze_subscript_affine_affine): Count the classified dependences.
3313         Print a message when a test failed.
3314         (can_use_analyze_subscript_affine_affine): New.
3315         (analyze_siv_subscript): Compute the data dependences on symbolic
3316         scevs that verify can_use_analyze_subscript_affine_affine.
3317         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
3318         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
3319         Handle symbolic scevs.
3320         (analyze_overlapping_iterations): Let symbolic affine scevs to be
3321         analyzed.
3322         (subscript_dependence_tester): Moved...
3323         (build_classic_dist_vector, build_classic_dir_vector): Don't use
3324         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
3325         DDR_SIZE_VECT instead of getting it in parameter.
3326         (subscript_dependence_tester): ... here.  Take as a parameter
3327         loop_nest_depth.  Call build_classic_dist_vector and
3328         build_classic_dir_vector.
3329         (compute_affine_dependence): Update subscript_dependence_tester
3330         parameters.  Update datadep_stats counters.  Call
3331         compute_subscript_distance.
3332         (compute_self_dependence): Save the dist and dir vectors.  Call
3333         compute_subscript_distance.
3334         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
3335         (compute_all_dependences): Reorder parameters as they were before
3336         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
3337         compute_subscript_distance.  Update the use of
3338         compute_affine_dependence and initialize_data_dependence_relation.
3339         (find_data_references_in_loop): Handle COMPONENT_REF.
3340         (compute_data_dependences_for_loop): Initialize dependence_stats.
3341         Don't call build_classic_dist_vector and build_classic_dir_vector.
3342         Update the parameters of initialize_data_dependence_relation and
3343         compute_all_dependences.  Print the statistics from datadep_stats.
3344         (analyze_all_data_dependences): Static.  Not used until the pass for
3345         checking the data dependences is contributed.
3346         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
3347         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
3348         (initialize_data_dependence_relation, compute_affine_dependence,
3349         analyze_all_data_dependences, compute_subscript_distance): Removed.
3350         (print_direction_vector): New.
3351         * lambda.h (gcd): ... here.
3352         (lambda_vector_gcd): Moved here from gcd_vector.
3353         * lambda-code.c (gcd, gcd_vector): Removed.
3354         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
3355         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
3356
3357 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
3358
3359         * ipa-type-escape.c: Tidy some comments and white space.
3360         * tree-ssa-operands.c: Likewise.
3361
3362 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
3363
3364         PR tree-opt/25879
3365         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
3366         (dump_decl_name): Do not walk the decl tree chains.
3367         * tree-pass.h (TDF_CHAIN): Remove.
3368
3369 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
3370
3371         * Makefile.in (C): Remove
3372         (PROTO): Remove
3373         (.PHONY): Remove C and PROTO
3374
3375 2006-02-20  Roger Sayle  <roger@eyesopen.com>
3376
3377         PR middle-end/26236
3378         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
3379         deprecated CHAR_TYPE tree code.
3380
3381 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
3382
3383         * configure.ac (target_list): Add install-info, dvi, html.
3384         * configure: Regenerate.
3385
3386         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
3387         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
3388         treelang/Make-lang.in: Do not use double-colon rules.
3389
3390 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
3391
3392         * tree.h (struct tree_memory_tag): Add is_used_alone member.
3393         (TMT_USED_ALONE): New macro.
3394         * tree-pass.h (PROP_tmt_usage): New property.
3395         (TODO_update_tmt_usage): New todo.
3396         * tree-ssa-alias.c (updating_used_alone): New variable.
3397         (recalculate_used_alone): New function.
3398         (compute_may_aliases): Set updating_used_alone, call
3399         recalculate_used_alone.
3400         * tree-sra.c (pass_sra): Note that this pass destroys
3401         PROP_tmt_usage, and add TODO_update_tmt_usage.
3402         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
3403         * tree-flow.h (updating_used_alone): Prototype.
3404         (recalculate_used_alone): Ditto.
3405         * passes.c (execute_todo): Add code to set updating_used_alone,
3406         and call recalculate.
3407         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
3408         for clobber if used alone, and add assert to verify used_alone
3409         status.
3410
3411 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
3412
3413         * config/s390/s390.c (legitimize_pic_address): Assertions checking
3414         for non tls symbols added.
3415         (legitimize_address): Do nothing for PLUS expressions if one of the
3416         addends is a tls symbol reference.
3417
3418 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
3419
3420         PR bootstrap/25476
3421
3422         * Makefile.in (LDFLAGS): Define from autoconf substitution.
3423
3424         * Makefile.in (BOOTSTRAPPING): New.
3425         (quickstrap): New definition if BOOTSTRAPPING=yes.
3426
3427         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
3428         * configure.ac: Substitute all_selected_languages with the languages
3429         that were configured.  For all the other variables except
3430         lang_specs_files, include all the languages in the tree.
3431         * configure: Regenerate.
3432
3433         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
3434         if there is one.  Run the commands to run fixincludes in the same
3435         subshell.
3436
3437         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
3438         * doc/install.texi: Document exact conventions for searching target tools.
3439         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
3440         something more about building an Ada cross-compiler.  Don't list GNU Make
3441         requirements which affect all platforms.
3442
3443 2006-02-19  Roger Sayle  <roger@eyesopen.com>
3444
3445         PR middle-end/19543
3446         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
3447         only equivalent if the have both the same mode and precision.
3448
3449 2006-02-20  Ben Elliston  <bje@au.ibm.com>
3450
3451         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
3452
3453 2006-02-19  Roger Sayle  <roger@eyesopen.com>
3454             Steven Bosscher  <stevenb.gcc@gmail.com>
3455
3456         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
3457         constant pool references to identify stack mode constants.
3458         * rtlanal.c (constant_pool_constant_p): New predicate to check
3459         whether operand is a floating point constant in the pool.
3460         * rtl.h (constant_pool_constant_p): Prototype here.
3461         * loop.c (scan_loop): Avoid hoisting constants from the constant
3462         pool on STACK_REGS targets.
3463         (load_mems): Likewise.
3464         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
3465         loads into x87 registers expensive in terms of register pressure.
3466
3467 2006-02-19  Roger Sayle  <roger@eyesopen.com>
3468
3469         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
3470         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
3471
3472 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
3473
3474         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
3475         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
3476
3477 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
3478
3479         * doc/invoke.texi: Document -fipa-pta.
3480         * common.opt: Add ipa-pta option.
3481         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
3482         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
3483         (do_ds_constraint): Ditto.
3484         (get_constraint_for): Only add to referenced_vars if
3485         referenced_vars exists.
3486         (insert_into_field_list): Rewrite to do this unsorted.
3487         (insert_into_field_list_sorted): Rename old insert_into_field_list
3488         to this.
3489         (create_function_info_for): Use insert_into_field_list_sorted.
3490         (create_variable_info_for): Rewrite so it uses unsorted version,
3491         since the field list is sorted.
3492         (intra_create_variable_infos): Only add to referenced_vars if
3493         referenced_vars exists.
3494         (ipa_pta_execute): Init heapvars, and delete when done.
3495         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
3496
3497 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3498
3499         * doc/install.texi: Add missing `@samp'.
3500
3501 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
3502
3503         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
3504         Use the arguments.
3505
3506 2006-02-18  Mark Wielaard  <mark@klomp.org>
3507
3508         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
3509         who added new 4.1 features, bug fixes and integration support.
3510
3511 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
3512
3513         PR target/26350
3514         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
3515         MEM for ABI_V4 pic.
3516
3517 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
3518
3519         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
3520         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
3521         (copy_insn_1): Likewise.  Don't copy each field individually.
3522         Reindent.
3523         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
3524         of RTX_SIZE.
3525         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
3526         * rtl.c (rtx_size): Rename variable to...
3527         (rtx_code_size): ...this.
3528         (rtx_size): New function.
3529         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
3530         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
3531         Reindent.
3532         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
3533         * rtl.h (rtx_code_size): New variable.
3534         (rtx_size): Change from a variable to a function.
3535         (RTX_SIZE): Rename to...
3536         (RTX_CODE_SIZE): ...this.
3537
3538         PR target/9703
3539         PR tree-optimization/17106
3540         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
3541         (Anchored Addresses): New section.
3542         * doc/invoke.texi (-fsection-anchors): Document.
3543         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
3544         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
3545         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
3546         * hooks.c (hook_bool_mode_rtx_false): New function.
3547         * hooks.h (hook_bool_mode_rtx_false): Declare.
3548         * gengtype.c (create_optional_field): New function.
3549         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
3550         SYMBOL_REF_IN_BLOCK_P is true.
3551         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
3552         (min_anchor_offset, max_anchor_offset): Likewise.
3553         (use_anchors_for_symbol_p): New hook.
3554         * toplev.c (compile_file): Call output_object_blocks.
3555         (target_supports_section_anchors_p): New function.
3556         (process_options): Check that -fsection-anchors is only used on
3557         targets that support it and when -funit-at-a-time is in effect.
3558         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
3559         if the decl doesn't have one.
3560         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
3561         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
3562         of force_const_mem through use_anchored_address.
3563         (expand_expr_constant): New function.
3564         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
3565         calling expand_expr for INDIRECT_REF.
3566         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
3567         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
3568         * expr.h (use_anchored_address): Declare.
3569         * loop-unroll.c: Don't declare rtx vectors here.
3570         * explow.c: Include output.h.
3571         (validize_mem): Call use_anchored_address.
3572         (use_anchored_address): New function.
3573         * common.opt (-fsection-anchors): New switch.
3574         * varasm.c (object_block_htab, anchor_labelno): New variables.
3575         (hash_section, object_block_entry_eq, object_block_entry_hash)
3576         (use_object_blocks_p, get_block_for_section, create_block_symbol)
3577         (use_blocks_for_decl_p, change_symbol_section): New functions.
3578         (get_variable_section): New function, split out from assemble_variable.
3579         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
3580         use_blocks_for_decl_p say so.  Use change_symbol_section if the
3581         symbol has already been created.
3582         (assemble_variable_contents): New function, split out from...
3583         (assemble_variable): ...here.  Don't output any code for
3584         block symbols; just pass them to place_block_symbol.
3585         Use get_variable_section and assemble_variable_contents.
3586         (get_constant_alignment, get_constant_section, get_constant_size): New
3587         functions, split from output_constant_def_contents.
3588         (build_constant_desc): Create a block symbol if use_object_blocks_p
3589         says so.  Or into SYMBOL_REF_FLAGS.
3590         (assemble_constant_contents): New function, split from...
3591         (output_constant_def_contents): ...here.  Don't output any code
3592         for block symbols; just pass them to place_section_symbol.
3593         Use get_constant_section and get_constant_alignment.
3594         (force_const_mem): Create a block symbol if use_object_blocks_p and
3595         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
3596         (output_constant_pool_1): Add an explicit alignment argument.
3597         Don't switch sections here.
3598         (output_constant_pool): Adjust call to output_constant_pool_1.
3599         Switch sections here instead.  Don't output anything for block symbols;
3600         just pass them to place_block_symbol.
3601         (init_varasm_once): Initialize object_block_htab.
3602         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
3603         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
3604         (place_block_symbol, get_section_anchor, output_object_block)
3605         (output_object_block_htab, output_object_blocks): New functions.
3606         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
3607         (TARGET_ASM_OUT): Include it.
3608         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
3609         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
3610         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
3611         (TARGET_INITIALIZER): Include them.
3612         * rtl.c (rtl_check_failed_block_symbol): New function.
3613         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
3614         (block_symbol, object_block): New structures.
3615         (rtx_def): Add a block_symbol field to the union.
3616         (BLOCK_SYMBOL_CHECK): New macro.
3617         (rtl_check_failed_block_symbol): Declare.
3618         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
3619         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
3620         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
3621         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
3622         * output.h (output_section_symbols): Declare.
3623         (object_block): Name structure.
3624         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
3625         (default_use_anchors_for_symbol_p): Declare.
3626         * Makefile.in (RTL_BASE_H): Add vec.h.
3627         (explow.o): Depend on output.h.
3628         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
3629         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
3630         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
3631         (rs6000_use_blocks_for_constant_p): New function.
3632
3633 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3634
3635         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
3636
3637 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
3638
3639         PR tree-opt/25680
3640         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
3641         IMAGPART_EXPR.
3642
3643 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
3644
3645         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
3646         is_aliased.
3647         Update all users.
3648
3649 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
3650
3651         PR middle-end/26334
3652         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
3653         instead of DECL_REGISTER.
3654
3655 2006-02-18  Olivier Hainque  <hainque@adacore.com>
3656
3657         PR ada/13408
3658         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
3659
3660 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
3661
3662         PR target/24837
3663         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
3664         * opth-gen.awk: Handle Var and InverseMask together.
3665         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
3666         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
3667         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
3668         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
3669         used together.
3670         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
3671         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
3672         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
3673         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3674         LINUX_DYNAMIC_LINKER): Define.
3675         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
3676         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
3677         TARGET_GLIBC.
3678         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3679         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
3680         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3681         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3682         (TARGET_C99_FUNCTIONS): Don't define.
3683         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
3684         GLIBC_DYNAMIC_LINKER.
3685         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
3686         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
3687         GLIBC_DYNAMIC_LINKER64): Define.
3688         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
3689         LINUX_DYNAMIC_LINKER64.
3690         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3691         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3692         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
3693         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3694         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3695         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3696         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
3697         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
3698         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
3699         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
3700         and LINUX_DYNAMIC_LINKER32.
3701         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3702         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3703         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
3704         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3705         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
3706         TARGET_GLIBC.
3707         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
3708         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
3709         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
3710         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3711         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
3712         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
3713         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
3714         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
3715         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3716         LINUX_DYNAMIC_LINKER): Define.
3717         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
3718         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
3719         GLIBC_DYNAMIC_LINKER64): Define.
3720         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
3721         LINUX_DYNAMIC_LINKER64.
3722         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3723         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3724         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
3725         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
3726         LINUX_DYNAMIC_LINKER): Define.
3727         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3728         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
3729         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
3730         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
3731         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
3732         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
3733         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
3734         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
3735         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
3736         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3737         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3738         * doc/invoke.texi (-muclibc): Remove caveat about supported
3739         targets.
3740
3741 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
3742
3743         * doc/cpp.texi (__TIMESTAMP__): Document.
3744
3745 2006-02-17  Roger Sayle  <roger@eyesopen.com>
3746
3747         PR middle-end/25600
3748         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
3749         C is one less than the width of X (and related transformations).
3750         * simplify-rtx.c (simplify_unary_operation_1): Transform
3751         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
3752         depending on STORE_FLAG_VALUE, were C is one less then the
3753         width of X.
3754
3755 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
3756
3757         Fix PR tree-optimization/26341
3758         * tree-ssa-operands.c (add_virtual_operand): Remove assert
3759         about NAME_MEMORY_TAG's.
3760
3761 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
3762
3763         PR target/26255
3764         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
3765         with hardware float support, and software float support.  Add fcpy
3766         alternative to hardware patterns.  Add alternatives to copy between
3767         general and floating-point registers to the 32-bit pattern.
3768         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
3769         secondary reload to load a QI or HI mode constant into a floating
3770         point register.
3771         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
3772         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
3773
3774 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
3775
3776         PR target/26272
3777         * config/rs6000/darwin.md (load_macho_picbase_si): Add
3778         pc to the pattern.
3779         (load_macho_picbase_di): Likewise.
3780
3781 2006-02-16  Jeff Law  <law@redhat.com>
3782
3783         * tree-vrp.c (set_value_range_to_nonnegative): New function.
3784         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
3785         (ssa_name_nonzero_p): Likewise.
3786         (get_value_range): Return NULL if VRP is not running.
3787         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
3788         VRP routines do not discover a range.
3789         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
3790         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
3791         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
3792         (tree_expr_nonnegative_p): Similarly.
3793         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
3794         (restore_nonzero_vars_to_original_value): Remove.
3795         (unsafe_associative_fp_binop): Remove.
3796         (tree_ssa_dominator_optimize): Remove initialization and
3797         finalization of nonzero_vars and nonzero_vars_stack.
3798         (dom_opt_initialize_block): No longer push marker on
3799         nonzero_vars_stack.
3800         (dom_opt_finalize_block): No longer call
3801         restore_nonzero_vars_to_original_value.
3802         (record_equivalences_from_phis): No longer look for
3803         nonzero PHI arguments.
3804         (cprop_into_successor_phis): No longer propagate nonzero
3805         property into PHI arguments.  Lose unused argument.  Caller
3806         updated.
3807         (record_equivalences_from_stmt): No longer record nonzero
3808         values for SSA_NAMEs.
3809         (lookup_avail_expr): No longer use nonzero_vars.
3810
3811         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
3812         for sizetype when sizetype is unsigned.
3813
3814 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
3815
3816         PR rtl-optimization/25603
3817         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
3818         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
3819         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
3820         with new meaning of SETS.
3821
3822 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
3823
3824         PR target/20353
3825         PR target/24578
3826         PR target/24837
3827         * config/linux.opt: New file.
3828         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
3829         LINUX_DYNAMIC_LINKER): Define.
3830         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
3831         * config.gcc (*-*-linux*): Define extra_options.
3832         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
3833         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
3834         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
3835         GLIBC_DYNAMIC_LINKER.
3836         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
3837         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3838         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
3839         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
3840         * doc/invoke.texi (GNU/Linux Options): New section.
3841
3842 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
3843
3844         * config/sparc/sparc.md (setjmp): Rewrite.
3845         (setjmp_32): Delete.
3846         (setjmp_64): Likewise.
3847
3848 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
3849
3850         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
3851          previous change.
3852
3853 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
3854
3855         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
3856         read-write uses.
3857
3858 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
3859
3860         PR rtl-optimization/26296
3861         * Makefile.in (loop-invariant.c): Add except.h dependency.
3862         * loop-invariant.c: Include except.h.
3863         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
3864
3865 2005-02-16  Paul Brook  <paul@codesourcery.com>
3866
3867         * reload1.c (emit_reload_insns): Invalidate dead input registers used
3868         for reloads.
3869
3870 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
3871
3872         PR rtl-optimization/25636
3873         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
3874         when deciding whether an insn is an initializing insn.
3875
3876 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
3877
3878         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
3879         (tree_code_size): Ditto.
3880         * tree.h (struct tree_memory_tag): Remove parent_var.
3881         (struct tree_struct_field_tag): New.
3882         (SFT_OFFSET): New.
3883         (SFT_SIZE): New.
3884         (union tree_node): Add sft member.
3885         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
3886         specially here.
3887         (create_sft): Add size and offset argument, set SFT_OFFSET and
3888         SFT_SIZE.
3889         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
3890         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
3891         * tree-flow-inline.h (get_subvar_at): Update for
3892         SFT_OFFSET/SFT_SIZE.
3893         (var_can_have_subvars): Ditto.
3894         (overlap_subvar): Ditto.
3895         * print-tree.c (print_node): Print out interesting things for
3896         SFT's.
3897         * tree-flow.h (struct subvar): Remove offset and size members.
3898         * tree-ssa-operands.c (get_expr_operands): Update for
3899         get_indirect_ref_operands changes.
3900         (get_indirect_ref_operands): Call add_virtual_operand instead of
3901         add_stmt_operand.  Only recurse on base var if requested.
3902         (access_can_touch_variable): New function.
3903         (add_stmt_operand): Split virtual operand handling into ...
3904         (add_virtual_operand): Here.  Add offset, size, and for_clobber
3905         arguments.  Prune alias sets.
3906         (add_call_clobber_ops): Call add_virtual_operand.
3907
3908 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
3909
3910         PR middle-end/26300
3911         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
3912
3913         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
3914         than TREE_CODE as index into omp_clause_num_ops array.
3915
3916 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
3917
3918         PR rtl-optimization/26184
3919         * modulo-sched.c (generate_reg_moves): Free bitmap vector
3920         uses_of_defs.
3921         * modulo-sched.c (sms_schedule): Free g_arr pointer.
3922         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
3923         must_precede, must_follow and tobe_scheduled.
3924
3925         PR other/26147
3926         * opts.c (common_handle_option): Free new_option pointer.
3927         * df-core.c (df_analyze): Free postorder pointer.
3928
3929 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
3930
3931         * Makefile.in: Fix the examples about the use of stamps
3932
3933 2006-02-15  Michael Matz  <matz@suse.de>
3934
3935         PR middle-end/22275
3936
3937         * stor-layout.c (layout_decl): Zero-width bitfields aren't
3938         influenced by maximum_field_alignment or DECL_PACKED.
3939         (update_alignment_for_field): Ditto.
3940         (place_field): Ditto.
3941         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
3942         this behaviour.
3943
3944 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
3945
3946         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
3947         (debug_flow_info): Pass it.
3948         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
3949         * bb-reorder.c (reorder_basic_blocks): Likewise.
3950         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
3951         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
3952         * flow.c (life_analysis, recompute_reg_usage): Likewise.
3953         * gcse.c (gcse_main, bypass_jumps): Likewise.
3954         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
3955         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
3956         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
3957         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
3958         * rtl.h (dump_flow_info): Adjust prototype.
3959         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
3960         * var-tracking.c (variable_tracking_main): Likewise.
3961         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
3962         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
3963         options.
3964
3965 2006-02-15  Marcin Dalecki <martin@dalecki.de>
3966
3967         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
3968         construction.
3969
3970 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
3971
3972         PR tree-optimization/26209
3973         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
3974         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
3975         eh edges.
3976         * tree-cfg.c (replace_uses_by): Do not alter cfg.
3977
3978 2006-02-14  Roger Sayle  <roger@eyesopen.com>
3979
3980         PR middle-end/23670
3981         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
3982         (X,Y) and the corresponding symmetry related transformations.
3983         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
3984         (X,Y) and its symmetry related transformations.
3985
3986 2006-02-14  Roger Sayle  <roger@eyesopen.com>
3987
3988         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
3989         and GEU.
3990
3991 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
3992
3993         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
3994
3995 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
3996
3997         PR bootstrap/26053
3998         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
3999         support COMDAT group.
4000         * configure: Regenerate.
4001
4002 2006-02-14  Roger Sayle  <roger@eyesopen.com>
4003
4004         PR middle-end/26279
4005         PR middle-end/26280
4006         PR middle-end/26283
4007         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
4008
4009 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
4010
4011         Fix PR tree-optimization/26260
4012
4013         * doc/invoke.texi (max-fields-for-field-sensitive): Document
4014         param.
4015         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
4016         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
4017         * tree-ssa-structalias.c (create_variable_info_for): Use
4018         MAX_FIELDS_FOR_FIELD_SENSITIVE.
4019
4020 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
4021
4022         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
4023         Document.
4024         * tree-ssa-loop-niter.c (number_of_iterations_ne,
4025         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
4026         of the ending condition.
4027         * tree-ssa-loop-manip.c: Include params.h.
4028         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
4029         tree_unroll_loop): New functions.
4030         * tree-pass.h (pass_loop_prefetch): Declare.
4031         * loop.c (rest_of_handle_loop_optimize): Test for
4032         -fprefetch-loop-arrays-rtl.
4033         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
4034         * timevar.def (TV_TREE_PREFETCH): New timevar.
4035         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
4036         pass_loop_prefetch): New.
4037         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
4038         (cleanup_tree_cfg_loop): Call scev_reset.
4039         * common.opt (fprefetch-loop-arrays-rtl): Add.
4040         * tree-ssa-loop-prefetch.c: New file.
4041         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
4042         (new_temp_expr_table): Initialize expr_vars.
4043         (free_temp_expr_table): Cleanup expr_vars.
4044         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
4045         expressions from being merged into one.
4046         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
4047         (struct tree_niter_desc): Add control, bound and cmp fields.
4048         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
4049         Declare.
4050         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
4051         (tree-cfgcleanup.o): Add SCEV_H dependency.
4052         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
4053         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
4054
4055 2006-02-14  Richard Guenther  <rguenther@suse.de>
4056
4057         PR tree-optimization/26258
4058         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
4059         in PHI argument processing.
4060
4061 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
4062
4063         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
4064         new expression in the requested machine mode.
4065
4066 2006-02-13  Roger Sayle  <roger@eyesopen.com>
4067
4068         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
4069         directly, instead let do_compare_rtx_and_jump handle this for us.
4070         * expr.c (expand_expr_real_1): Likewise.
4071         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
4072         before do_jump_by_parts_greater.
4073         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
4074         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
4075
4076 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4077
4078         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
4079
4080 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
4081
4082         PR rtl-optimization/26235
4083         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
4084         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
4085         format.
4086
4087 2006-02-13  Jeff Law  <law@redhat.com>
4088
4089         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
4090         TRUTH_XOR_EPR.
4091
4092 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
4093
4094         PR middle-end/26092
4095         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
4096         twice if decl is a builtin.  When trying again, call get_callee_fndecl
4097         first to verify it is still a builtin.
4098
4099 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
4100
4101         * dwarf2out.c (base_type_die): Don't add AT_name here.
4102         (subrange_type_die): Don't add AT_name here.
4103         (modified_type_die): Rearrange code flow.  Do add AT_name here.
4104
4105 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
4106
4107         PR rtl-optimization/26247
4108         PR rtl-optimization/26248
4109         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
4110
4111 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
4112
4113         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
4114         * config/fixtfdi.c: Likewise.
4115         * config/fixunstfdi.c: Likewise.
4116         * config/floatditf.c: Likewise.
4117
4118 2006-02-13  Roger Sayle  <roger@eyesopen.com>
4119
4120         PR middle-end/24427
4121         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
4122         into (X,C2) if C1 is a subset of the bits of C2.  Transform
4123         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
4124         (X&(C1&~C2))|C2.
4125         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
4126
4127 2006-02-13  Josh Conner  <jconner@apple.com>
4128
4129         PR target/25376
4130         * varasm.c (function_section): Check for section name before
4131         calling select_section on targets that define
4132         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
4133         unlikely_text_section instead of hot_function_section if
4134         first_function_block_is_cold.
4135
4136 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
4137
4138         PR middle-end/25335
4139         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
4140
4141 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
4142
4143         PR rtl-optimization/26222
4144         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
4145         after tree->rtl expansion.
4146         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
4147         before passing it to emit_move_insn.
4148
4149 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4150
4151         * doc/invoke.texi (-Write-strings): Document that it is enabled by
4152         default.
4153         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
4154         Clarify documentation.
4155         * c-common.h (warn_write_strings): Remove.
4156         * c-common.c (warn_write_strings): Likewise.
4157         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
4158         default for C++.
4159
4160 2006-02-12  Roger Sayle  <roger@eyesopen.com>
4161
4162         PR middle-end/25724
4163         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
4164         (do_jump_parts_zero_rtx): New function renamed from
4165         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
4166         (do_jump_parts_equality_rtx): New function split out from
4167         do_jump_parts_equality.  Old implementation renamed as above.
4168         Call do_jump_parts_zero_rtx if either operand is zero.
4169         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
4170         do all of the heavy lifting.
4171         (do_compare_rtx_and_jump): Handle multi-word comparisons by
4172         calling either do_jump_by_parts_greater_rtx or
4173         do_jump_by_parts_equality_rtx.
4174         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
4175         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
4176         moved to do_compare_rtx_and_jump, call it directly.
4177         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
4178         mode argument.  Call do_compare_rtx_and_jump.
4179         (emit_case_nodes): Update calls to do_jump_if_equal.
4180
4181 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
4182
4183         PR rtl-optimization/26225
4184         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
4185
4186 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
4187
4188         PR rtl-optimization/26232
4189         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
4190
4191 2006-02-11  Jason Merrill  <jason@redhat.com>
4192
4193         PR tree-opt/24365
4194         * tree-inline.c (declare_return_variable): Just don't use the
4195         modify target if it's a gimple complex reg and the return slot
4196         isn't.
4197
4198 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
4199
4200         * doc/contrib.texi: Update my entry.
4201
4202 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
4203
4204         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
4205
4206 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
4207
4208         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
4209         expensive.
4210
4211 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
4212
4213         * doc/invoke.texi (-floop-optimize2): Removed.
4214         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
4215         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
4216         Test flag_branch_on_count_reg only if HAVE_doloop_end.
4217         * common.opt (floop-optimize2): Removed.
4218         (fmove-loop-invariants): Enabled by default.
4219
4220 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
4221
4222         * tree-if-conv.c (combine_blocks): Free the result of
4223         get_loop_exit_edges.
4224
4225 2006-02-10  Jeff Law  <law@redhat.com>
4226
4227         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
4228
4229         PR tree-optimization/26213
4230         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
4231         loop trying to follow SSA_NAME_VALUE chains.
4232
4233 2006-02-10  Richard Guenther  <rguenther@suse.de>
4234
4235         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
4236         deal with structures that end in implicitly variable sized arrays.
4237
4238 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
4239
4240         PR rtl-optimization/24762
4241         * df-scan.c (df_bb_refs_record): Record correct registers defined on
4242         eh edges.
4243
4244 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
4245
4246         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
4247         (struct ivopts_data): Add regs_used field.
4248         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
4249         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
4250         instead of loop_data->regs_used;
4251         (free_loop_data): Do not free aux fields for loops.
4252         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
4253         and tree_ssa_iv_optimize_finalize.
4254
4255 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
4256
4257         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
4258
4259 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
4260
4261         PR target/26141
4262         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
4263         computing the effective result type.
4264
4265 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
4266
4267         PR inline-asm/16194
4268         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
4269         (tree_overlaps_hard_reg_set): Declare.
4270         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
4271         type and signature to match function type expected by walk_tree.
4272         (tree_overlaps_hard_reg_set): New function.
4273         (decl_conflicts_with_clobbers_p): Rename to:
4274         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
4275         Use tree_overlaps_hard_reg_set.  Changed caller.
4276         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
4277         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
4278         * cris.c (cris_md_asm_clobbers): Likewise.
4279
4280 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
4281
4282         * reload1.c (emit_input_reload_insns): Delete code that tries to
4283         inherit using find_equiv_reg.
4284
4285 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
4286
4287         * c-common.h (flag_const_strings): Don't declare.
4288         * c-common.c (flag_const_strings): Remove.
4289         * c.opt (fconst_strings): Remove.
4290         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
4291         <OPT_Wwrite_strings>: Don't set flag_const_strings.
4292         (c_common_init_options): Don't set flag_const_strings.
4293         * doc/invoke.texi (-fno-const-strings): Remove documentation.
4294
4295 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
4296
4297         * arm.md (tlobits_cbranch): New pattern.
4298         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
4299         testing a single bit.
4300
4301 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
4302
4303         PR tree-opt/26179
4304         * tree-ssa-pre.c (create_component_ref_by_pieces):
4305         Handle RETURN_DECL like VAR_DECL.
4306
4307 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
4308
4309         PR middle-end/26134
4310         * fold-const.c (fold_indirect_ref_1): Fold
4311         "*(foo *)&complexfoo" to "__real__ complexfoo"
4312         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
4313
4314 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
4315
4316         * tree-flow-inline.h (var_can_have_subvars):
4317         Volatile variables should not have subvariables.
4318
4319 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
4320
4321         PR 26180
4322         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
4323         multiplying unsigned values.
4324         Tidy comments.
4325
4326 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
4327
4328         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
4329
4330 2006-02-08  Jason Merrill  <jason@redhat.com>
4331
4332         PR c++/25979
4333         * tree.def: Elaborate on difference from MODIFY_EXPR.
4334         * doc/c-tree.texi (INIT_EXPR): Likewise.
4335         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
4336         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
4337         (gimplify_target_expr): Likewise.
4338         (gimplify_cond_expr): Remove target handling.
4339         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
4340         (gimplify_expr): Clobber it here.
4341         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
4342         Do return slot optimization if we have an INIT_EXPR.
4343
4344         PR tree-opt/24365
4345         * tree-inline.c (declare_return_variable): Also clear
4346         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
4347
4348         PR c++/16405
4349         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
4350
4351         PR middle-end/22439
4352         * gimplify.c (gimplify_one_sizepos): Fix typo.
4353
4354 2006-02-08  Jeff Law  <law@redhat.com>
4355
4356         PR tree-optimization/21417
4357         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
4358         across a backedge if the control statement at the end of the
4359         block is data dependent on other statements in the same block.
4360         (record_temporary_equivalences_from_stmts): Remove over-conservative
4361         test for threading across backedges.
4362
4363         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
4364         control statement, handle all three special cases in the same
4365         manner as they all have the same desired solution.  No longer
4366         special case edge flag updating when the post dominator is
4367         the exit block.
4368
4369 2006-02-08  Roger Sayle  <roger@eyesopen.com>
4370
4371         * tree.def (CHAR_TYPE): Remove.
4372         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
4373         * dwarf2out.c (base_type_die, is_base_type): Likewise.
4374         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
4375         (gen_string_type_die): Delete unreachable function.
4376
4377         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
4378         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
4379         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
4380         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
4381         * builtins.c (type_to_class): Likewise.
4382         * fold-const.c (fold_convert, build_range_check,
4383         merge_ranges): Likewise.
4384         * expr.c (count_type_elements): Likewise.
4385         * c-pretty-print.c (pp_c_type_specifier): Likewise.
4386         * stor-layout.c (layout_type): Likewise.
4387         * ipa-type-escape.c (type_to_consider): Likewise.
4388         * gimplify.c (omp_firstprivatize_type_sizes,
4389         gimplify_type_sizes): Likewise.
4390         * explow.c (promote_mode): Likewise.
4391         * tree-sra.c (is_sra_scalar_type): Likewise.
4392         * varasm.c (output_constant): Likewise.
4393         * tree-inline.c (remap_type_1): Likewise.
4394         * convert.c (convert_to_pointer, convert_to_real,
4395         convert_to_integer, convert_to_complex): Likewise.
4396
4397 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
4398
4399         * df-scan.c (df_def_record_1): A set destination may
4400         be a parallel regardless of mode.
4401
4402 2006-02-08  Roger Sayle  <roger@eyesopen.com>
4403
4404         PR target/22209
4405         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
4406         * config/mips/_tilib.c: Remove.
4407         * config/fixtfdi.c: New libgcc source file.
4408         * config/fixunstfdi.c: New source file.
4409         * config/floatditf.c: New source file.
4410         * config/floatunditf.c: New souce file.
4411         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
4412         files above instead of config/mips/_tilib.c.
4413         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
4414
4415 2006-02-08  Jeff Law  <law@redhat.com>
4416
4417         PR tree-optimization/26169
4418         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
4419         threading jumps.
4420
4421 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
4422
4423         * df.h (DF_REG_SIZE): Return the length of the initialized
4424         part of the array.
4425
4426 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
4427
4428         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
4429         __muldf3): Return a correctly signed zero.
4430
4431 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
4432
4433         * passes.c (register_one_dump_file): Accept the current properties
4434         instead of pass number.  Adjust call to dump_register.  Remove
4435         duplicated code.
4436         (register_dump_files): Now a wrapper around...
4437         (register_dump_files_1): ... this one.  Do not modify the pass
4438         structure.
4439         (next_pass_1): Cosmetic fix.
4440         (execute_todo): Keep second parameter only.  Use curr_properties
4441         instead of fetching it from the pass structure.  Check and set
4442         last_verified.
4443         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
4444         instead of fetching it from the pass structure.  Fix calls to
4445         execute_todo.  Update curr_properties and initialize .vcg RTL dump
4446         after running the pass.  Reset last_verified.
4447         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
4448         at the beginning.
4449         (FIRST_AUTO_NUMBERED_DUMP): New.
4450         (dump_register): Remove "num" parameter, assign it within the
4451         function.
4452         (get_dump_file_name): Modify template for dumps.
4453         * tree-dump.h (dump_register): Adjust prototype.
4454         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
4455         (PROP_trees): Add PROP_gimple_lomp.
4456         (TODO_set_props): New.
4457         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
4458         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
4459         * cfgexpand.c (pass_expand): Destroy PROP_trees.
4460
4461 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
4462
4463         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
4464         (sparc64-*-linux*): Likewise.
4465         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
4466         * config/sparc/t-linux: New file.
4467         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
4468         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
4469         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
4470         -m32 -mlong-double-128.
4471
4472         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
4473         * config/alpha/t-linux: New file.
4474         * config/alpha/libgcc-alpha-ldbl.ver: New file.
4475
4476         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
4477         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
4478         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
4479         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
4480         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
4481         (CPP_ARCH32_SPEC): Remove.
4482
4483 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
4484
4485         PR tree-optimization/26145
4486         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
4487         bbs pointer.
4488
4489 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4490
4491         PR target/26109
4492         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
4493         >= 240000 when generating code for SOM runtime.
4494         (output_indirect_call): Don't use "b,l" instruction for indirect calls
4495         to $$dyncall when generating code for SOM runtime..
4496
4497 2006-02-07  Dirk Mueller  <dmueller@suse.com>
4498
4499         PR c++/18150
4500         * doc/invoke.texi (-Wsequence-point): Update documentation
4501         that -Wsequence-point is implemented for C++ as well.
4502
4503 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
4504
4505         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
4506         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
4507         (LIB_SPEC): Likewise.
4508         * doc/invoke.texi (SPARC options): Document -pthread.
4509
4510 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
4511
4512         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
4513         PIC addresses.
4514
4515 2006-02-07  Roger Sayle  <roger@eyesopen.com>
4516
4517         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
4518         Correct comment describing BOOLEAN_TYPE.
4519
4520 2006-02-07  Dirk Mueller  <dmueller@suse.com>
4521
4522         * c.opt: C++ frontend supports -Wdiv-by-zero.
4523         * c-opts.c (c_common_handle_option): Remove dead case.
4524
4525 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
4526
4527         * configure.ac (TLS assembler check): Do not enable TLS by
4528         default on SPARC/Solaris before version 10.
4529         * configure: Regenerate.
4530
4531 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
4532
4533         * doc/invoke.texi (xl-compat): Document conversion and support
4534         routine names.
4535
4536 2006-02-07  Jeff Law  <law@redhat.com>
4537
4538         * tree-vrp.c (find_conditional_asserts): Update comments.
4539         (simplify_stmt_for_jump_threading): New.
4540         (identify_jump_threads, finalize_jump_threads): New.
4541         (vrp_finalize): Call identify_jump_threads.
4542         (execute_vrp): Call finalize_jump_threads.
4543         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
4544         (vrp_element, vrp_data, vrp_element_p): Remove.
4545         (vrp_hash_elt, vrp_variables_stack): Remove.
4546         (vrp_hash, vrp_eq, record_range): Remove.
4547         (simplify_cond_and_lookup_avail_expr): Remove.
4548         (extract_range_from_cond): Remove.
4549         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
4550         (simplify_stmt_for_jump_threading): New.
4551         (dom_thread_across_edge): New wrapper.
4552         (tree_ssa_dominator_optimize): No longer initialize or
4553         finalize any of the VRP datastructures.  Remove iteration
4554         step and simplify as a result of removal of iteration step.
4555         (pass_dominator): Perform a cfg cleanup after DOM.
4556         (dom_opt_finalize_block): Use the new common routines
4557         for threading jumps.  Simplify stack management slightly.
4558         No longer need to unwind VRP state.
4559         (record_equivalences_from_incoming_edge): No longer record
4560         VRP information.
4561         (eliminate_redundant_computations): No longer call
4562         simplify_cond_and_lookup_avail_expr.
4563         * tree-flow.h (potentially_threadable_block): Prototype.
4564         (thread_across_edge): Likewise.
4565         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
4566         (tree-ssa-threadedge.o): Add dependencies.
4567         * tree-ssa-threadedge.c: New file.
4568         * passes.c (init_optimization_passes): Merge PHIs before
4569         calling VRP.  Run VRP again late in the SSA optimization pipeline.
4570
4571 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
4572
4573         * df-core.c (df_set_blocks): Do not dereference function pointers.
4574         (df_finish1): Likewise.
4575         (df_hybrid_search_forward): Likewise.
4576         (df_hybrid_search_backward): Likewise.
4577         (df_iterative_dataflow): Likewise.
4578         (df_analyze_problem): Likewise.
4579         (df_compact_blocks): Likewise.
4580         (df_dump): Likewise.
4581         * df-scan.c (df_rescan_blocks): Likewise.
4582         (df_record_entry_block_defs): Likewise.
4583
4584         * genconditions.c (write_conditions): Guard the definition of
4585         'insn_conditions' with the check on GCC version.
4586         (write_writer): Guard the traversal 'insn_conditions' with
4587         the check on GCC version.
4588
4589 2006-02-07  Richard Guenther  <rguenther@suse.de>
4590
4591         PR c++/26140
4592         Revert
4593         2006-01-30  Richard Guenther  <rguenther@suse.de>
4594         PR c++/23372
4595         * gimplify.c (gimplify_target_expr): Handle easy cases
4596         without creating a temporary.
4597
4598 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
4599
4600         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
4601         use of float in probability computations.  Use edge probabilities
4602         in place of statically computed probabilities.
4603         (min_spec_prob): New static variable.
4604         (schedule_insns): Initialize it.
4605         (GET_SRC_PROB): Removed.
4606         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
4607
4608 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
4609
4610         PR debug/24444
4611         * config/ia64/unwind-ia64.c: Revert last change.
4612         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
4613         (INCOMING_FRAME_SP_OFFSET): Define.
4614
4615 2006-02-06  Roger Sayle  <roger@eyesopen.com>
4616
4617         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
4618
4619 2006-02-07  Ben Elliston  <bje@au.ibm.com>
4620
4621         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
4622         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
4623         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
4624         (ix86_return_in_memory): Handle TDmode.
4625         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
4626         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
4627
4628 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
4629
4630         * reorg.c (dbr_schedule): Use dump_file instead of file.
4631
4632 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
4633
4634         PR target/25917
4635         * config/ia64/predicates.md (extr_len_operand): New predicate.
4636         * config/ia64/ia64.md (extv): Tighten constraints.
4637         (extzv): Ditto.
4638         (*tbit_and_2): Ditto.
4639         (*tbit_and_3): Ditto.
4640         (*tbit_or_2): Ditto.
4641         (*tbit_or_3): Ditto.
4642         (*bit_zero): Ditto.
4643         (*bit_one): Ditto.
4644
4645 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
4646
4647         PR target/23359
4648         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
4649
4650 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
4651
4652         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
4653         loop_optimizer_init and loop_optimizer_finalize
4654         * tree-ssa-sink.c (execute_sink_code): Ditto.
4655         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
4656         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
4657         tree_ssa_loop_done): Ditto.
4658         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
4659         * sched-ebb.c: Include output.h.
4660         (schedule_ebbs): Do not use dump argument.
4661         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
4662         * loop.c (loop_dump_stream): Removed.
4663         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
4664         argument.
4665         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
4666         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
4667         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
4668         loop_iterations, strength_reduce, record_biv, record_giv,
4669         final_giv_value, check_final_value, check_ext_dependent_givs,
4670         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
4671         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
4672         dump_file instead of loop_dump_stream.
4673         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
4674         argument dump_file.
4675         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
4676         dump argument.
4677         * flow.c (life_analysis, rest_of_handle_life): Ditto.
4678         * haifa-sched.c: Include output.h
4679         (schedule_insns, sched_init): Do not use dump argument.
4680         * mode-switching.c (optimize_mode_switching): Ditto.
4681         * modulo-sched.c (stats_file): Removed.
4682         (print_node_sched_params): Do not call argument dump_file.
4683         (sms_schedule_by_order, loop_canon_p, sms_schedule,
4684         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
4685         of stats_file.
4686         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
4687         use dump argument.
4688         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
4689         rtl_loop_init, rtl_loop_done): Ditto.
4690         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
4691         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
4692         Ditto.
4693         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
4694         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
4695         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
4696         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
4697         * emit-rtl.c (renumber_insns): Ditto.
4698         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
4699         expand_gimple_basic_block, tree_expand_cfg): Ditto.
4700         * regclass.c (regclass): Ditto.
4701         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
4702         remove_ssa_form, rewrite_out_of_ssa): Ditto.
4703         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
4704         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
4705         Ditto.
4706         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
4707         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
4708         to regclass.
4709         * gcse.c (gcse_file, debug_stderr): Removed.
4710         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
4711         rest_of_handle_gcse): Do not use dump argument.
4712         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
4713         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
4714         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
4715         compute_code_hoist_vbeinout, compute_code_hoist_data,
4716         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
4717         compute_store_table, build_store_vectors, insert_insn_start_bb,
4718         insert_store, remove_reachable_equiv_notes, replace_store_insn,
4719         store_motion): Use dump_file instead of gcse_file.
4720         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
4721         * profile.c (profile_dump_file): Removed.
4722         (branch_prob): Use dump_file instead of profile_dump_file.
4723         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
4724         dump_file.
4725         * tree-ssa-copy.c (dump_copy_of): Ditto.
4726         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
4727         dump file to life_analysis.
4728         * bt-load.c (branch_target_load_optimize): Ditto.
4729         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
4730         renumber_insns.
4731         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
4732         regclass, dbr_schedule): Declaration changed.
4733         * sched-int.h (sched_init): Declaration changed.
4734         * tree-profile.c (tree_profile_dump_file): Removed.
4735         (tree_profile_hooks): Removed profile_dump_file hook.
4736         * rtl-profile (rtl_profile_dump_file): Removed.
4737         (rtl_profile_hooks): emoved profile_dump_file hook.
4738         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
4739         changed.
4740         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
4741         * tree-cfg.c (build_tree_cfg): Ditto.
4742         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
4743         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
4744         Declaration changed.
4745         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
4746         life_analysis and schedule_insns.
4747         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
4748         life_analysis.
4749         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
4750         dbr_schedule.
4751         * config/mips/mips.c (mips_reorg): Ditto.
4752         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
4753         schedule_ebbs.
4754
4755 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
4756
4757         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
4758         (s390_mangle_fundamental_type): New.
4759         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4760         Define.
4761
4762         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
4763         (alpha_mangle_fundamental_type): New.
4764         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4765         Define.
4766
4767         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4768         Define.
4769         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
4770         Define.
4771         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
4772         (sparc_mangle_fundamental_type): New.
4773
4774 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
4775
4776         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
4777         (s390x-*-linux*): Likewise.
4778         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
4779         * config/s390/t-linux: New file.
4780
4781 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
4782
4783         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
4784         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
4785
4786 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
4787
4788         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
4789         (ANTIC_SAFE_LOADS): New macro.
4790         (find_or_generate_expression): Add prototype.
4791         (set_contains_value): Allow null set for sake of not always having
4792         to allocate ANTIC_SAFE_LOADS.
4793         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
4794         Allow COMPONENT_REF too.
4795         (valid_in_set): Allow COMPONENT_REF.
4796         Check ANTIC_SAFE_LOADS too.
4797         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
4798         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
4799         rename.
4800         (can_PRE_operation): Add COMPONENT_REF.
4801         (create_component_ref_by_pieces): New function.
4802         (create_expression_by_pieces): Use create_component_ref_by_pieces.
4803         (insert_aux): Move AGGREGATE_TYPE_P check here.
4804         (compute_avail): Set bb local stmt uids.
4805         (pass_pre): Use TODO_update_ssa_only_virtuals.
4806
4807 2006-02-06  Ben Elliston  <bje@au.ibm.com>
4808
4809         * configure.ac: Unconditionally disable decimal float by default.
4810         * configure: Regenerate.
4811
4812 2006-02-06  Ben Elliston  <bje@au.ibm.com>
4813
4814         * read-rtl.c (read_name): Terminate reading on EOF.
4815
4816 2006-02-06  Ben Elliston  <bje@au.ibm.com>
4817
4818         * dfp.c (decimal_real_arithmetic): Change second argument type
4819         from int to enum tree_code. Do not always return true, but now
4820         return result of any call to decimal_do helper functions.
4821         * dfp.h (decimal_real_arithmetic): Update prototype.
4822
4823 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
4824
4825         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
4826
4827 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
4828
4829         PR tree-opt/25251
4830         * tree-cfg.c (cleanup_dead_labels): Also don't remove
4831         forced labels.
4832
4833 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
4834
4835         * tree-vrp.c (cfg_loops): Removed.
4836         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
4837         Use current_loops instead of cfg_loops.  Pass flags to
4838         loop_optimizer_init.
4839         * cfgloopmanip.c (fix_loop_structure): Update only available
4840         information.
4841         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
4842         loop_optimizer_init.
4843         * modulo-sched.c (build_loops_structure): Removed.
4844         (sms_schedule): Use loop_optimizer_init.
4845         * loop-init.c (loop_optimizer_init): Use flags to determine
4846         which properties of loops to prepare.
4847         (rtl_loop_init): Pass flags to loop_optimizer_init.
4848         * tree-ssa-sink.c (execute_sink_code): Ditto.
4849         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
4850         * tree-ssa-pre.c (init_pre): Ditto.
4851         * cfgloop.h (LOOPS_NORMAL): New.
4852         (loop_optimizer_init): Declaration changed.
4853
4854 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4855
4856         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
4857         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
4858         pa/t-pa.
4859         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
4860         pa/t-pa.
4861         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
4862         pa/x-ada.
4863         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
4864         * pa/t-pa64: Delete quadlib.c rule.
4865         * pa/x-ada: Revert last change.
4866         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
4867
4868 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
4869
4870         PR rtl-optimization/26087
4871         * rtlanal.c (canonicalize_condition): Do not cross basic block
4872         boundaries.
4873
4874 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
4875
4876         PR debug/24444
4877         * config/ia64/ia64.c: Include debug.h.
4878         (MAX_ARTIFICIAL_LABEL_BYTES): New.
4879         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
4880         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
4881         (process_epilogue, process_set, process_for_unwind_directive):
4882         Output unwind info only if requested.  Add CFA info if requested.
4883         Add new arguments as needed.  Adjust callers.
4884         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
4885         incorrect default.
4886         (DWARF2_FRAME_INFO): Define to zero.
4887         * config/ia64/unwind-ia64.c: Remove code that compensated for
4888         the CFA offset error fixed above.
4889         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
4890         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
4891         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
4892         -funwind-tables and -fexceptions to enable frame info.
4893         (dwarf2out_frame_init): Define initial CFA even if
4894         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
4895         DWARF2_UNWIND_INFO is nonzero, not just defined.
4896         (dwarf2out_frame_finish): Output non-EH call frame info only
4897         if DWARF2_FRAME_INFO is nonzero.
4898         (convert_cfa_to_loc_list,
4899         compute_frame_pointer_to_cfa_displacement): Define even if
4900         unwind info is not supported.
4901         (gen_subprogram_die): Use the above unconditionally.  Remove
4902         legacy alternate code.
4903         * toplev.c (compile_file): Compile in call to
4904         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
4905         (lang_dependent_init): Ditto for dwarf2out_frame_init.
4906
4907 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
4908             Jakub Jelinek  <jakub@redhat.com>
4909
4910         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
4911         IBM extended float format long double as "g" on powerpc*-linux.
4912
4913 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4914
4915         PR target/25926
4916         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
4917         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
4918
4919 2006-02-03  Jason Merrill  <jason@redhat.com>
4920
4921         PR c++/25979
4922         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
4923
4924         PR middle-end/25977
4925         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
4926         on the return slot if it's an NRV.
4927
4928 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
4929
4930         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
4931         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
4932         rewrite_use): Do not handle USE_OUTER.
4933         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
4934         add_iv_outer_candidates, may_replace_final_value,
4935         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
4936         (find_interesting_uses_op): Functionality of
4937         find_interesting_uses_outer_or_nonlin moved here.
4938         (find_interesting_uses_outside): Use find_interesting_uses_op.
4939
4940 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
4941
4942         PR target/25960
4943         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
4944
4945 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
4946             Ulrich Weigand  <uweigand@de.ibm.com>
4947
4948         PR target/25864
4949         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
4950         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
4951         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
4952         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
4953         and dxr fields.
4954         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
4955         (s390_rtx_costs): Use the new fields to calculate rtx costs.
4956         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
4957         Define secondary reloads for TFmode moves.
4958         (constant_modes): Add TFmode.
4959         (NR_C_MODES): Set to 8.
4960         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
4961         builtin define.
4962         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
4963         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
4964         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
4965         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
4966         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
4967         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
4968         (FPR mode macro): Add TFmode.
4969         (DSF mode macro): New.
4970         (<de>, <dee> mode attributes): Removed.
4971         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
4972         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
4973         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
4974         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
4975         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
4976         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
4977         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
4978         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
4979         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
4980         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
4981         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
4982         "*negabs<mode>2", "sqrt<mode>2"):
4983         Changed <de> to <xde>. R constraint replaced by <Rf>.
4984         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
4985         <Rf>.
4986         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
4987         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
4988         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
4989         splitters.
4990         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
4991         "extenddftf2", "extendsftf2"): New expanders.
4992         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
4993         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
4994         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
4995         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
4996         New options.
4997         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
4998         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
4999         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
5000         __floatditf): Add a GCC_4.1.0 symbol version tag.
5001         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
5002         the new options.
5003
5004 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
5005
5006         PR target/25377
5007         * config/i386/i386.c (ix86_function_ok_for_sibcall):
5008         Use targetm.binds_local_p instead of TREE_PUBLIC.
5009
5010 2006-02-02  Roger Sayle  <roger@eyesopen.com>
5011
5012         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
5013         on INTEGER_TYPEs to indicate that it denotes a character type.
5014         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
5015         signed_char_type_node, unsigned_char_type_node and char_type_node.
5016         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
5017         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
5018         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
5019
5020 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
5021             Daniel Berlin  <dberlin@dberlin.org>
5022
5023         * tree-tailcall.c (arg_needs_copy_p): New function.
5024         (eliminate_tail_call): Use arg_needs_copy_p.
5025         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
5026         (add_virtual_phis): New function.
5027
5028 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
5029
5030         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
5031         #ignore instead of #scratch for %g7 .register directive.
5032
5033 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
5034
5035         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
5036         object files.
5037
5038 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
5039
5040         * flow.c (calculate_global_regs_live): Assert that there aren't any
5041         EDGE_FAKE edges.
5042
5043 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
5044
5045         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
5046         what its name says.
5047         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
5048         bsi_after_labels iterator.
5049         * tree-if-conv.c (find_phi_replacement_condition,
5050         replace_phi_with_cond_modify_expr): Likewise.
5051         * tree-scalar-evolution.c (scev_const_prop): Likewise.
5052         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
5053
5054 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
5055
5056         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
5057
5058 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
5059
5060         PR 25990
5061         * tree-cfg.c (move_block_to_fn): Clear out the basic block
5062         array after growing it.
5063
5064 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
5065
5066         PR middle-end/24901
5067         * fold-const.c (fold_checksum_tree): Change type of buf.
5068
5069 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
5070
5071         * reload.c (push_secondary_reload): Initialize t_icode.
5072
5073 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
5074
5075         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
5076         -msoft-float -mlong-double-128 only issue a warning, but don't
5077         swich to DFmode long double.
5078
5079 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
5080
5081         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
5082         has a constant equivalent, iterate over equivalents for arg0,
5083         calling simplify_relational_operation and if there's a result
5084         cheaper than X, apply fold_rtx and return the result.
5085
5086 2006-02-01  Jan Hubicka  <jh@suse.cz>
5087
5088         * opts.c (no_unit_at_a_time_default): New global variable.
5089         (decode_options): Use it.
5090         * opts.h (no_unit_at_a_time_default): Declare.
5091
5092 2006-02-01  Paul Brook  <paul@codesourcery.com>
5093
5094         * function.c (assign_parm_setup_reg): Use function argument promotion
5095         rules.
5096         * expr.c (expand_expr_real_1): Use function argument promotion rules
5097         for PARM_DECLs.
5098
5099 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
5100
5101         * gcc.c (process_command): Change j to 'unsigned int'.
5102
5103 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
5104
5105         PR middle-end/26001
5106         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
5107         Use the corrected index for the character
5108         out of the string constant.
5109
5110 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
5111
5112         * mode-switching.c (optimize_mode_switching): Fix size
5113         allocated for bb_info[n_entities].
5114
5115 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
5116
5117         * gcc.c (main): Correct type that is allocated for
5118         explicit_link_files.
5119
5120 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
5121
5122         * config/s390/s390.c (init_alignment_context): Set
5123         ALIAS_SET_MEMORY_BARRIER on the MEM.
5124         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
5125
5126 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
5127
5128         PR middle-end/25933
5129         * loop-unroll.c (unroll_loop_runtime_iterations): Free
5130         dom_bbs pointer.
5131         * tree-ssa-live.c (type_var_init): Allocate bitmap after
5132         call to tpa_init.
5133
5134 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
5135
5136         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
5137         * regrename.c: Ditto.
5138         * tree-ssa-loop-im.c: Ditto.
5139         * tree-dump.c: Ditto.
5140         * tree-complex.c: Ditto.
5141         * genrecog.c: Ditto.
5142         * tree-ssa-threadupdate.c: Ditto.
5143         * tracer.c: Ditto.
5144         * java/class.c: Ditto.
5145         * java/jcf-parse.c: Ditto.
5146         * java/resource.c: Ditto.
5147         * java/except.c: Ditto.
5148         * java/jvspec.c: Ditto.
5149         * java/jcf-write.c: Ditto.
5150         * java/jcf-path.c: Ditto.
5151         * java/gjavah.c: Ditto.
5152         * java/zextract.c: Ditto.
5153         * java/jcf-io.c: Ditto.
5154         * java/jcf.h: Ditto.
5155         * java/buffer.c: Ditto.
5156         * java/lang.c: Ditto.
5157         * java/parse-scan.y: Ditto.
5158         * java/lex.c: Ditto.
5159         * java/lex.h: Ditto.
5160         * cfgloopmanip.c: Ditto.
5161         * postreload-gcse.c: Ditto.
5162         * tree-ssa-loop-manip.c: Ditto.
5163         * postreload.c: Ditto.
5164         * tree-ssa-loop-ch.c: Ditto.
5165         * loop.c: Ditto.
5166         * ipa-cp.c: Ditto.
5167         * cppspec.c: Ditto.
5168         * diagnostic.c: Ditto.
5169         * final.c: Ditto.
5170         * genoutput.c: Ditto.
5171         * gcc.c: Ditto.
5172         * cfghooks.c: Ditto.
5173         * cfgloopanal.c: Ditto.
5174         * objc/objc-act.c: Ditto.
5175         * gcov.c: Ditto.
5176         * genextract.c: Ditto.
5177         * genautomata.c: Ditto.
5178         * pretty-print.c: Ditto.
5179         * genemit.c: Ditto.
5180         * cgraphunit.c: Ditto.
5181         * flow.c: Ditto.
5182         * df-scan.c: Ditto.
5183         * haifa-sched.c: Ditto.
5184         * dominance.c: Ditto.
5185         * dbxout.c: Ditto.
5186         * tree-ssa-loop-ivopts.c: Ditto.
5187         * df-core.c: Ditto.
5188         * mode-switching.c: Ditto.
5189         * modulo-sched.c: Ditto.
5190         * graph.c: Ditto.
5191         * ipa-pure-const.c: Ditto.
5192         * cse.c: Ditto.
5193         * fix-header.c: Ditto.
5194         * web.c: Ditto.
5195         * tree-stdarg.c: Ditto.
5196         * ipa-utils.c: Ditto.
5197         * loop-init.c: Ditto.
5198         * ipa-inline.c: Ditto.
5199         * cfganal.c: Ditto.
5200         * global.c: Ditto.
5201         * alloc-pool.c: Ditto.
5202         * dwarf2out.c: Ditto.
5203         * opts.c: Ditto.
5204         * genattrtab.c: Ditto.
5205         * tree-ssa-loop-ivcanon.c: Ditto.
5206         * predict.c: Ditto.
5207         * timevar.c: Ditto.
5208         * lcm.c: Ditto.
5209         * fortran/gfortranspec.c: Ditto.
5210         * regmove.c: Ditto.
5211         * local-alloc.c: Ditto.
5212         * langhooks.c: Ditto.
5213         * function.c: Ditto.
5214         * tree-vectorizer.c: Ditto.
5215         * gcse.c: Ditto.
5216         * ipa-type-escape.c: Ditto.
5217         * alias.c: Ditto.
5218         * tree-if-conv.c: Ditto.
5219         * profile.c: Ditto.
5220         * ipa.c: Ditto.
5221         * tree-data-ref.c: Ditto.
5222         * loop-unroll.c: Ditto.
5223         * treelang/treetree.c: Ditto.
5224         * calls.c: Ditto.
5225         * bt-load.c: Ditto.
5226         * ggc-common.c: Ditto.
5227         * except.c: Ditto.
5228         * coverage.c: Ditto.
5229         * cselib.c: Ditto.
5230         * tree-cfgcleanup.c: Ditto.
5231         * tree-ssa-pre.c: Ditto.
5232         * cfgcleanup.c: Ditto.
5233         * loop-invariant.c: Ditto.
5234         * loop-iv.c: Ditto.
5235         * ipa-prop.c: Ditto.
5236         * print-tree.c: Ditto.
5237         * conflict.c: Ditto.
5238         * ggc-page.c: Ditto.
5239         * sched-deps.c: Ditto.
5240         * regclass.c: Ditto.
5241         * tree-object-size.c: Ditto.
5242         * combine.c: Ditto.
5243         * bb-reorder.c: Ditto.
5244         * resource.c: Ditto.
5245         * var-tracking.c: Ditto.
5246         * cfgloop.c: Ditto.
5247         * df-problems.c: Ditto.
5248         * reg-stack.c: Ditto.
5249         * tlink.c: Ditto.
5250         * gccspec.c: Ditto.
5251         * sched-rgn.c: Ditto.
5252         * tree-ssa-structalias.c: Ditto.
5253         * tree-ssa-reassoc.c: Ditto.
5254         * config/darwin-c.c: Ditto.
5255         * config/darwin.c: Ditto.
5256         * config/arm/arm.c: Ditto.
5257         * cfgrtl.c: Ditto.
5258         * collect2.c: Ditto.
5259         * reload1.c: Ditto.
5260
5261 2006-01-31  Nicolas Pitre  <nico@cam.org>
5262
5263         * arm.md (smaxsi3): Make aware of smax_m1.
5264         (smax_m1): New.
5265
5266 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
5267
5268         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
5269
5270 2006-01-31  Richard Guenther  <rguenther@suse.de>
5271
5272         * doc/invoke.texi (-msselibm): Document.
5273         * target.h (expand_library_builtin): New target hook.
5274         * builtins.c (expand_builtin): Use expand_library_builtin.
5275         (default_expand_library_builtin): New function.
5276         * gcc.c (LINK_GCC_MATH_SPEC): Define.
5277         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
5278         (link_gcc_math_spec): Declare.
5279         (static_specs): Add link_gcc_math_spec.
5280         * expr.h (default_expand_library_builtin): Declare.
5281         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
5282         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
5283         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
5284         * config/i386/i386.opt (msselibm): New target option.
5285         * config/i386/i386.c (ix86_builtin_function_variants): New array.
5286         (ix86_init_sse_abi_builtins): New function.
5287         (ix86_expand_library_builtin): Likewise.
5288         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
5289         (override_options): Handle error conditions wrt -msselibm.
5290         (ix86_builtins): Add function codes for SSE2 ABI builtins.
5291         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
5292         * doc/extend.texi (__builtin_sse2_*): Document new target specific
5293         builtins.
5294
5295 2006-01-31  Richard Guenther  <rguenther@suse.de>
5296         Paolo Bonzini  <bonzini@gnu.org>
5297
5298         * doc/install.texi (--disable-libgcc-math): Document.
5299
5300 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
5301
5302         * expr.h (expand_normal): new inline function.
5303         * builtins.c: use it, use EXPAND_NORMAL explicitely.
5304         * dojump.c: use it.
5305         * dwarf2out.c: use it.
5306         * expr.c: use it.
5307         * calls.c: use it.
5308         * expmed.c: use it.
5309         * except.c: use it.
5310         * config/sparc/sparc.c: use it.
5311         * config/i386/i386.c: use it.
5312         * config/rs6000/rs6000.c: use it.
5313         * config/arm/arm.c: use it.
5314         * config/mips/mips.c: use it.
5315         * stmt.c: use it, use EXPAND_NORMAL explicitely.
5316
5317 2006-01-30  Roger Sayle  <roger@eyesopen.com>
5318
5319         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
5320         argv to the appropriate type.
5321
5322 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
5323
5324         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
5325         unreachable code.
5326
5327 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
5328
5329         PR target/26018
5330         * config/s390/s390.c (struct machine_function): New flag
5331         decomposed_literal_pool_addresses_ok_p.
5332         (s390_reorg): Set it before final stage of literal pool transforms.
5333         (s390_decompose_address): Only accept displacements of the form
5334         (minus (label_ref ...) (label_ref ...)) if that flag is set.
5335
5336 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
5337
5338         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
5339         the comparison routine return.
5340
5341 2006-01-30  Michael Matz  <matz@suse.de>
5342
5343         * global.c (find_reg): Only evict for global regs.
5344         Take n_refs into account and dump more info.
5345
5346 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
5347
5348         PR target/14798:
5349         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
5350         (pragma_trap, pragma_nosave_low_regs): Likewise.
5351         (current_function_anonymous_args): Likewise.
5352         (sh_deferred_function_attributes): New variable.
5353         (sh_deferred_function_attributes_tail): Likewise.
5354         (print_operand): For '@', look up trap_exit attribute.
5355         (calc_live_regs): Look up trapa_handler attribute.  For trapa
5356         handlers, save/restore fpscr, but don't do any other
5357         interrupt-specific saves.
5358         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
5359         Fix check for partially saved registers to check for SHmedia.
5360         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
5361         (sh_output_function_epilogue): Don't clear any of the removed
5362         variables.
5363         (sh_insert_attributes): Don't check pragma_interrupt.
5364         Insert deferred attributes.  Check that interrupt attribute is
5365         present for other attributes that require its presence.
5366         (sh_attribute_table): Add new attributes trapa_handler and
5367         nosave_low_regs.
5368         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
5369         Don't check for pragma_interrupt.  Don't store argument.
5370         * sh.h (pragma_interrupt, sp_switch): Don't declare.
5371         (sh_deferred_function_attributes): Declare.
5372         (sh_deferred_function_attributes_tail): Likewise.
5373         * sh.md (sp_switch_1): Add operand.  Change generator caller.
5374         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
5375         (*return_i): Don't use when trap_exit attribute is in effect.
5376         (*return_trapa): New insn pattern.
5377         * sh-c.c: New file.
5378         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
5379         setting c_target_objs and cxx_target_objs.
5380         * t-sh: Add rule for sh-c.o.
5381
5382 2006-01-30  Richard Guenther  <rguenther@suse.de>
5383
5384         PR c++/23372
5385         * gimplify.c (gimplify_target_expr): Handle easy cases
5386         without creating a temporary.
5387
5388 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
5389
5390         * vec.h (safe_grow): Remove duplicated line.
5391
5392 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
5393
5394         PR 25874
5395         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
5396         (expand_omp): ... here.
5397         (expand_omp_parallel): Only remove barriers for combined
5398         parallel+workshare constructs.
5399
5400 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
5401
5402         Revert
5403
5404         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
5405         * tree.c (build_qualified_type): Chain the new type to the original
5406         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
5407         a POINTER_TYPE or a REFERENCE_TYPE respectively.
5408         (build_pointer_type_for_mode): Only return unqualified types.
5409         (build_reference_type_for_mode): Likewise.
5410
5411 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
5412
5413         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
5414         * Makefile.in (CXX_COMPAT_WARN): Define.
5415         * configure: Regenerate.
5416
5417 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
5418
5419         PR tree-opt/25911
5420         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
5421         to an if check.
5422
5423 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5424
5425         * toplev.c: Fix thinko.
5426
5427 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
5428             Marcin Dalecki  <martin@dalecki.de>
5429
5430         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
5431         (push_srcloc): Use XNEW.
5432         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
5433
5434 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
5435
5436         * df-core.c (df_set_blocks): Deleted all variable.
5437
5438 2006-01-28  Ian Lance Taylor  <ian@airs.com>
5439
5440         * cgraphunit.c (cgraph_assemble_pending_functions): Call
5441         cgraph_output_pending_asms.
5442
5443 2006-01-28  Zack Weinberg  <zackw@panix.com>
5444
5445         * c.opt: Add -W(no-)overlength-strings.
5446         * doc/invoke.texi: Document it.
5447         * c-opts.c (c_common_handle_option): -pedantic implies
5448         -Woverlength-strings, if not explicitly disabled already.
5449         (c_common_post_options): -Woverlength-strings defaults to off, and
5450         is always off for C++.
5451         * c-common.c (fix_string_type): Issue warning about strings longer
5452         than is portable only if warn_overlength_strings.  Rearrange code
5453         a little for clarity.
5454         * configure.in: Check for -Wno-overlength-strings as well before
5455         enabling -pedantic in stage 1.
5456         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
5457         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
5458
5459         * genconditions.c (write_header, write_one_condition)
5460         (write_conditions, write_writer): Consolidate very long strings
5461         that were broken up to fit in C89 portable limit.  Don't use
5462         printf when fputs will do.
5463
5464 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
5465
5466         * combine.c (simplify_comparison <AND>): Check
5467         TRULY_NOOP_TRUNCATION before start using a subreg.
5468
5469         * config/mips/mips.md (*branch_zero<mode>,
5470         *branch_zero<mode>_inverted, *branch_equality<mode>,
5471         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
5472         Remove mode check from comparisons.
5473
5474 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
5475
5476         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
5477
5478 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
5479
5480         * expmed.c (const_mult_add_overflow_p): Remove.
5481         * expr.h: Remove the prototype for const_mult_add_overflow_p.
5482
5483         * recog.c (validate_replace_rtx_subexp): Remove.
5484         * recog.h: Remove the prototype for
5485         validate_replace_rtx_subexp.
5486
5487         * integrate.h: Remove the prototype for
5488         copy_decl_for_inlining.
5489         * rtl.h: Remove the prototype for mark_constant_function.
5490         * tree-vectorizer.h: Remove the prototype for
5491         vect_strip_conversion.
5492
5493         * modulo-sched.c (create_partial_schedule,
5494         free_partial_schedule, reset_partial_schedule): Make them
5495         static.
5496
5497         * hooks.c (hook_bool_rtx_int_false): Remove.
5498         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
5499
5500 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
5501
5502         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
5503         and -mlong-double-128 are incompatible.
5504         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
5505         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
5506         (TARGET_LIBGCC2_CFLAGS): Define.
5507         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
5508         (TARGET_LIBGCC2_CFLAGS): Same.
5509         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
5510
5511 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
5512
5513         PR c/19606.
5514         * c-typeck.c (build_binary_op): Perform implicit casts of
5515         operands before shortening them.
5516
5517         * cfgloopmanip.c (split_loop_bb): Remove.
5518         * cfgloop.h: Remove the prototype for split_loop_bb.
5519
5520         * cfgloop.c (flow_loop_outside_edge_p): Remove.
5521         * cfgloop.h: Remove the prototype for
5522         flow_loop_outside_edge_p.
5523
5524         * emit-rtl.c (init_virtual_regs): Make it static.
5525         * function.h: Remove the prototype for init_virtual_regs.
5526
5527         * recog.c (peephole2_optimize): Make it static.
5528         * recog.h: Remove the prototype for peephole2_optimize.
5529
5530 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
5531
5532         * df-scan.c (df_record_entry_block_defs): Check if
5533         INCOMING_RETURN_ADDR_RTX is defined.
5534
5535 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
5536             Kenneth Zadeck <zadeck@naturalbridge.com>
5537
5538         PR rtl-optimization/24762
5539         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
5540         * targhooks.c (hook_void_bitmap): New hook prototype.
5541         * targhoohs.h (hook_void_bitmap): Ditto.
5542         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
5543         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
5544         * target.h (live_on_entry): New function pointer.
5545         * df-scan.c (df_all_hard_regs): Removed.
5546         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
5547         (df_scan_free_internal): Added df->entry_block_defs.
5548         (df_scan_alloc): Ditto.
5549         (df_scan_dump): Ditto.
5550         (df_uses_record): Plumbed flag field properly thru calls.
5551         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
5552         This part fixes PR24762.
5553         (df_bb_refs_record): Added code to make the frame and arg
5554         pointers live in EH blocks.
5555         (df_refs_record): Added call to df_record_entry_block_defs.
5556         (df_record_entry_block_defs): New function.
5557         * df-core.c: Added comments to describe new artifical defs.
5558         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
5559         (entry_block_defs): New field in struct df.
5560         (df_all_hard_regs): Deleted.
5561         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
5562         * df-problems.c (df_ru_bb_local_compute_process_def):
5563         Added code to handle artifical defs in the entry to a function.
5564         (df_ru_bb_local_compute): Ditto.
5565         (df_rd_bb_local_compute_process_def):  Ditto.
5566         (df_rd_bb_local_compute): Ditto.
5567         (df_lr_bb_local_compute): Ditto.
5568         (df_ur_bb_local_compute): Ditto.
5569         (df_urec_bb_local_compute):  Ditto.
5570         (df_chain_create_bb):  Ditto.
5571         (df_ur_local_finalize): Removed entry.
5572         (df_urec_init): Ditto.
5573         (df_urec_local_finalize): Ditto.
5574         (df_ri_bb_compute): Added detection of last use of pseudos.
5575         * Makefile.in (df-scan.o): Updated dependencies.
5576         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
5577         * config/mips/mips.c (mips_set_live_on_entry): Added.
5578         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
5579         for target hook.
5580         * dce.c (marked_insn_p): Added code to handle artifical defs.
5581
5582 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
5583
5584         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
5585         intrinsic.
5586         (_mm_cvtsi128_si64): Likewise.
5587         (_mm_cvtsd_si64): Likewise.
5588         (_mm_cvttsd_si64): Likewise.
5589         (_mm_cvtsi64_sd): Likewise.
5590         (_mm_cvtsi64_si128): Likewise.
5591         * config/i386/mmintrin.h (_m_from_int64): Likewise.
5592         (_mm_cvtsi64_m64): Likewise.
5593         (_m_to_int64): Likewise.
5594         (_mm_cvtm64_si64): Likewise.
5595         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
5596         (_mm_cvttss_si64): Likewise.
5597         (_mm_cvtsi64_ss): Likewise.
5598         (_mm_cvtss_f32): Likewise.
5599
5600 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
5601
5602         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
5603         for pragma redefine_extname.
5604
5605 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
5606
5607         PR target/25864
5608         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
5609         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
5610         -mno-minimal-toc to previous content.
5611         (bispecs): Remove goal.
5612         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
5613         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
5614         compatibility aliases on powerpc-*-*gnu*.
5615         * config/rs6000/libgcc-ppc-glibc.ver: New file.
5616         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
5617         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
5618         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
5619         (ldblspecs): New goal.
5620         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
5621         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
5622         _df_to_tf.
5623         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
5624         L_sf_to_tf or L_df_to_tf is defined.
5625
5626 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
5627             Alan Modra  <amodra@bigpond.net.au>
5628
5629         PR target/25864
5630         * config/rs6000/linux.h (POWERPC_LINUX): Define.
5631         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
5632         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
5633         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
5634         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
5635         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
5636         (rs6000_override_options): Initialize rs6000_ieeequad.
5637         Initialize TFmode format to ibm_extended_format if not
5638         TARGET_IEEEQUAD.
5639         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
5640         ieeelongdouble.
5641         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
5642         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
5643         (function_arg_advance): IBM long double passed in two FPRs, not
5644         split.
5645         (function_arg): IBM long double passed in FPRs.
5646         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
5647         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
5648         Only multireg GPR aligned.
5649         (rs6000_init_libfuncs): Enable IBM long double functions if not
5650         IEEEQUAD.
5651         (rs6000_generate_compare): Use IBM long double compare if not
5652         TARGET_IEEEQUAD.
5653         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
5654         (TARGET_IEEEQUAD): Define.
5655         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
5656         not TARGET_IEEEQUAD.
5657         * config/rs6000/rs6000.md: Enable TFmode patterns if
5658         !TARGET_IEEEQUAD.
5659         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
5660         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
5661         and -mlong-double-128 are incompatible.
5662         * doc/invoke.texi (-mabi): Collect options together.  Add
5663         ibmlongdouble and ieeelongdouble.
5664
5665 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
5666
5667         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
5668         opaque type.
5669         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
5670         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
5671         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
5672         * rtl.h (rtunion_def): Remove rt_ptr.
5673         (X0PTR): Delete.
5674         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
5675         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
5676         * config/i386/winnt.c (i386_pe_mark_dllexport)
5677         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
5678
5679 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
5680
5681         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
5682
5683 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
5684
5685         PR other/24829
5686         PR target/24831
5687         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
5688         pthread_key_delete.  From John David Anglin.  gthrw-ify
5689         pthread_getunique_np only if it it's not a macro.  Delete
5690         UNUSED macro.
5691         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
5692         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
5693         __gthread_objc_condition_signal, __gthread_key_delete): Add
5694         "__attribute__ ((__unused__))" to unused arguments.
5695         (__gthread_recursive_mutex_init_function): Add missing return.
5696         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
5697         gthr-posix95.h: Use macro-based approach for name redirection
5698         on targets missing weakref.
5699
5700 2006-01-26  Zack Weinberg  <zackw@panix.com>
5701
5702         * genconditions.c (write_header): In generated code, #ifdef out
5703         all includes and fake declarations, except includes of bconfig.h
5704         and system.h, unless GCC_VERSION >= 3001.  Do not include
5705         gensupport.h in any case.
5706         (write_conditions): Generate a definition of struct c_test.  Add
5707         a comment to the generated #endif.
5708         (write_one_condition): Escape backslashes in string too.
5709         (write_writer): Generated code must escape backslashes and quote
5710         marks (but not newlines) in the strings it writes.
5711         * Makefile.in (build/gencondmd.o): Update dependencies.
5712
5713 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
5714
5715         PR target/25961
5716         * Makefile.in (insn-automata.o): Add header file dependencies.
5717         * genautomata.c: Add includes.
5718
5719 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
5720
5721         PR target/25961
5722         * Makefile.in (insn-automata.o): Add -Wno-error flag.
5723
5724 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
5725
5726         * configure.ac: Expect target tools paths to be passed from the toplevel
5727         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
5728         AS_SET_VAR_IF.
5729         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
5730
5731 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
5732
5733         PR c/25892
5734         * c.opt (Wpointer-sign): Init to -1.
5735         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
5736         OPT_pedantic, to 0 otherwise.
5737         * doc/invoke.texi: Update.
5738
5739 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
5740
5741         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
5742         constants provided by 80387 instructions in the destination mode.
5743
5744 2006-01-26  Richard Guenther  <rguenther@suse.de>
5745             Andrew Pinski  <pinskia@physics.uc.edu>
5746
5747         PR tree-opt/21470
5748         partial PR tree-opt/17064
5749         * tree-ssa-structalias.c (intra_create_variable_infos):
5750         Create heap variables for incoming parameters if
5751         flag_argument_noalias > 1.
5752         (find_what_p_points_to): Look through default defs of
5753         parameter decls.
5754
5755 2006-01-26  Jeff Law  <law@redhat.com>
5756
5757         PR ada/25900
5758         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
5759         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
5760         within the VR_RANGE, use the VR_RANGE as the result, not the
5761         VR_ANTI_RANGE.
5762         (adjust_range_with_scev): Reject ranges from SCEV which are out of
5763         bounds for the type.
5764
5765 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
5766
5767         * tree-ssa-alias.c (maybe_create_global_var): Change
5768         subvar walking to an assertion that we don't have subvar'd variables.
5769
5770 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
5771
5772         PR C/25861
5773         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
5774         Use a new variable, inner.  PARM_DECLs are always non-weak.
5775
5776 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
5777
5778         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
5779         --disable-checking.
5780
5781 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
5782
5783         * config/mips/mips.md (*clear_upper32): New combiner pattern.
5784
5785 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
5786
5787         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
5788         (smax_insn, smin_insn, smax_0, smin_0): New.
5789
5790 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
5791
5792         PR target/25947
5793         * config/cris/cris.c (cris_order_for_addsi3): New function.
5794         * config/cris/cris-protos.h: Prototype it.
5795         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
5796         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
5797         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
5798         (split for "op.S1 [rx=rx+i],ry (swapped)")
5799         (split for "op(s|u).S1 [rx=rx+i],ry")
5800         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
5801         Apply cris_order_for_addsi3 when generating addsi3 insns.
5802
5803 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
5804
5805         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
5806         (TREE_BLOCK): Add call to EXPR_CHECK.
5807
5808 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
5809
5810         PR 25886
5811         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
5812         * tree-pretty-print.c (dump_omp_clause): Extract from ...
5813         (dump_omp_clauses): ... here.
5814         (dump_generic_node): Handle OMP_CLAUSE.
5815         * tree.c (omp_clause_num_ops): New.
5816         (omp_clause_code_name): New.
5817         (tree_code_size): Handle OMP_CLAUSE.
5818         (tree_size): Likewise.
5819         (make_node): Document handling of OMP_CLAUSE.
5820         (tree_node_structure): Handle OMP_CLAUSE.
5821         (omp_clause_check_failed): New.
5822         (omp_clause_range_check_failed): New.
5823         (omp_clause_operand_check_failed): New.
5824         (build_omp_clause): New.
5825         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
5826         * tree.h (enum omp_clause_code): Declare.
5827         (OMP_CLAUSE_SUBCODE_CHECK): Define.
5828         (OMP_CLAUSE_RANGE_CHECK): Define.
5829         (OMP_CLAUSE_ELT_CHECK): Define.
5830         (omp_clause_check_failed): Declare.
5831         (omp_clause_operand_check_failed): Declare.
5832         (omp_clause_range_check_failed): Declare.
5833         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
5834         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
5835         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
5836         (OMP_CLAUSE_LASTPRIVATE): Likewise.
5837         (OMP_CLAUSE_IF_EXPR): Likewise.
5838         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
5839         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
5840         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
5841         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
5842         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
5843         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
5844         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
5845         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
5846         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
5847         (OMP_CLAUSE_CODE): Define.
5848         (OMP_CLAUSE_SET_CODE): Define.
5849         (OMP_CLAUSE_CODE): Define.
5850         (OMP_CLAUSE_OPERAND): Define.
5851         (struct tree_omp_clause): Declare.
5852         (union tree_node): Add field 'omp_clause'.
5853         * treestruct.def (TS_OMP_CLAUSE): Define.
5854         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
5855         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
5856         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
5857         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
5858         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
5859         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
5860         (OMP_CLAUSE): Define.
5861         * print-tree.c (print_node): Handle OMP_CLAUSE.
5862         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
5863         * c-typeck.c: Likewise.
5864         * gimplify.c: Likewise.
5865         * c-omp.c: Likewise.
5866         * tree-nested.c: Likewise.
5867         * tree-inline.c: Likewise.
5868         * c-parser.c: Likewise.
5869         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
5870         clauses.
5871
5872 2006-01-25  Roger Sayle  <roger@eyesopen.com>
5873
5874         PR rtl-optimization/25703
5875         * combine.c (try_combine): Handle zero_extract and strict_low_part
5876         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
5877
5878 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
5879
5880         * global.c: Fix comment typos.
5881
5882 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
5883
5884         PR target/25758
5885         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
5886         Use output_addr_const instead of assemble_name.
5887
5888 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
5889
5890         * Makefile.in (sched-vis.o): Update dependencies.
5891         * haifa-sched.c (sched_finish): Clear current_sched_info.
5892         * cfg.c (dump_bb_info): New, split from dump_flow_info.
5893         (dump_flow_info): Call it.
5894         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
5895         a slim RTL dump.
5896         * basic-block.h (dump_bb_info): Declare.
5897         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
5898         option, and apply options only for dump files whose TDF_RTL,
5899         TDF_TREE, or TDF_IPA bits match.
5900         * rtl.h: Declare new functions exported from sched-vis.c.
5901         * sched-vis.c: Enable also if scheduling is not used.
5902         (print_value): Print the mode of registers if not inside scheduling.
5903         (print_insn): Make it work outside the scheduler.  Beautify the output
5904         a bit.
5905         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
5906
5907 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
5908
5909         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
5910         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
5911         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
5912         depending on the value of CONSTANT_POOL_ADDRESS_P.
5913         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
5914         SYMBOL_REF_DECL.
5915         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
5916         rather than SYMBOL_REF_DECL.
5917         (rtx_constant_pool): Remove const_rtx_sym_htab.
5918         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
5919         (init_varasm_status): Don't initialize const_rtx_sym_htab.
5920         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
5921         Remove handling of const_rtx_sym_htab.
5922         (find_pool_constant): Delete.
5923         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
5924         rather than find_pool_constant.
5925         (get_pool_constant_for_function): Delete.
5926         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
5927         find_pool_constant.
5928         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
5929         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
5930         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
5931         (SYMBOL_REF_CONSTANT): New macro.
5932         (get_pool_constant_for_function): Delete.
5933         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
5934         rather than SYMBOL_REF_DECL.
5935         (i386_pe_mark_dllimport): Likewise.
5936         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
5937         rather than SYMBOL_REF_DECL.
5938         * config/darwin.c (machopic_indirect_data_reference): Likewise.
5939         (machopic_indirect_call_target): Likewise.
5940
5941 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
5942
5943         * flow.c (delete_noop_moves): Add missing EOL to dump message.
5944
5945 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
5946
5947         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
5948
5949 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
5950
5951         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
5952
5953 2006-01-24  David Daney  <ddaney@avtrex.com>
5954
5955         PR java/25816
5956         * configure.ac (enable_tls): New enable option.
5957         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
5958         * configure: Regenerate.
5959         * doc/install.texi (--enable-tls): Document new option.
5960         (--disable-tls): Ditto.
5961
5962 2006-01-24  Richard Henderson  <rth@redehat.com>
5963
5964         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
5965         * alias.c (true_dependence): Respect it.
5966         (canon_true_dependence, write_dependence_p): Likewise.
5967         * builtins.c (get_builtin_sync_mem): Set it.
5968
5969 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
5970
5971         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
5972         efficient way.
5973
5974 2006-01-24  DJ Delorie  <dj@redhat.com>
5975
5976         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
5977         for storing constants in single-bit bitfields.
5978
5979 2006-01-25  Ben Elliston  <bje@au.ibm.com>
5980
5981         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
5982
5983 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
5984
5985         PR tree-opt/25860
5986         * tree-ssa-pre.c (phi_translate): Return NULL
5987         for AGGREGATE_TYPE's.
5988
5989 2006-01-24  Zack Weinberg  <zackw@panix.com>
5990
5991         * genautomata.c (process_state_for_insn_equiv_partition):
5992         Use xcalloc for insn_arcs_array.
5993         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
5994         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
5995
5996 2006-01-24  Richard Henderson  <rth@redhat.com>
5997
5998         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
5999         update all callers.
6000
6001 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
6002
6003         PR rtl-optimization/25890
6004         PR rtl-optimization/25905
6005         * combine.c (expand_compound_operation, expand_field_assignment):
6006         Fail if the bitfield's final position is out of bounds.
6007
6008 2006-01-24  Ian Lance Taylor  <ian@airs.com>
6009
6010         PR middle-end/25930
6011         * cgraphunit.c (cgraph_output_in_order): Don't clear
6012         cgraph_asm_nodes until after asm strings have been output.
6013
6014 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
6015
6016         * fix-header.c (read_scan_file): Add new parameter imultilib when
6017         calling register_include_chains.
6018
6019 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
6020
6021         * omp-low.c: Update documentation.
6022
6023 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
6024             Daniel Berlin  <dberlin@dberlin.org>
6025
6026         PR tree-opt/25315
6027         PR tree-opt/25857
6028         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
6029         return from the function.
6030
6031 2006-01-22  Zack Weinberg  <zackw@panix.com>
6032
6033         * rtl.def (match_code): Add second argument.
6034         * genpreds.c (write_extract_subexp): New function.
6035         (write_match_code): Add path argument.  Use write_extract_subexp.
6036         (write_predicate_expr): Pass path to write_match_code.
6037         (mark_mode_tests): MATCH_CODE applied to a subexpression does
6038         not perform a mode test.
6039         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
6040         a subexpression does not constrain the top-level code set.
6041         * read-rtl.c (read_rtx_variadic): New function.
6042         (read_rtx_1): Use it; allow AND and IOR to be variadic.
6043         * doc/md.texi: Document new notation.
6044         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
6045         (cmpsi_operand): ... here, using new notation.
6046
6047 2006-01-22  Zack Weinberg  <zackw@panix.com>
6048
6049         * varray.c: Remove GENERATOR_FILE #ifdefs.
6050
6051 2006-01-22  Zack Weinberg  <zackw@panix.com>
6052
6053         * genautomata.c (output_reserved_units_table): Emit nothing if
6054         description->query_units_num is zero.  Remove extra blank line.
6055         (output_cpu_unit_reservation_p): Short circuit
6056         if description->query_units_num is zero.
6057
6058 2006-01-22  Zack Weinberg  <zackw@panix.com>
6059
6060         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
6061         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
6062         nor any of the random handful of variables that used to be necessary
6063         when this program was linked with rtlanal.o.  Prune set of forward
6064         function declarations.
6065         (struct attr_desc): Remove static_p field.
6066         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
6067         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
6068         (attr_string): Do not read the character one past the length of
6069         the string.
6070         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
6071         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
6072         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
6073         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
6074         (make_automaton_attrs): New.
6075         (main): Do not call into genautomata.  Call local gen_bypass
6076         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
6077         Remove special case for insn_alts.
6078         * genautomata.c: Include gensupport.h; not genattrtab.h nor
6079         varray.h (leftover from previous change).  Prune set of forward
6080         function declarations.  Remove state_alts fields from all
6081         structures.  Remove state_alts_table from struct automaton.
6082         Make everything except main static.  Do not maintain num_dfa_decls.
6083         Do not maintain state_alts fields of various structures.
6084         (process_decls): Don't validate condexp for dm_insn_reserv decls.
6085         (add_arc): Remove state_alts argument.  All callers updated.
6086         (output_reserved_units_table): Emit #ifdef here...
6087         (output_tables): ...not here.  Don't generate state_alts tables.
6088         (expand_automata): Don't generate attributes.
6089         (write_automata): Don't generate state_alts functions.
6090         (main): New function.
6091         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
6092         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
6093         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
6094         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
6095         (BYPASS_P_FUNC_NAME, output_state_alts_table)
6096         (output_automata_list_state_alts_code, output_internal_state_alts_func)
6097         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
6098         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
6099         Delete.
6100         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
6101         * genattrtab.h: Delete file.
6102         * Makefile.in (OBJS-common): Add insn-automata.o.
6103         (insn-automata.o): New rule.
6104         (simple_generated_c): Add insn-automata.c.
6105         (build/genattrtab.o, build/genautomata.o): Update dependencies.
6106         (genprogmd): Add automata.
6107         (build/genattrtab): Needs no extra objects nor libraries.
6108         (build/genautomata): Needs build/vec.o and -lm.
6109
6110 2006-01-22  Zack Weinberg  <zackw@panix.com>
6111
6112         * genautomata.c (process_state_longest_path, max_dfa_issue_rate)
6113         (output_dfa_max_issue_rate, locked_states_num): Delete.
6114         (struct automaton): Add locked_states field.
6115         (output_dead_lock_vect): Save number of locked states in
6116         automaton->locked_states.  If it is zero, don't print anything.
6117         (output_max_insn_queue_index_def): Define max_insn_queue_index const.
6118         (output_internal_dead_lock_func): Only test the dead_lock_vect
6119         for automata that have locked states.
6120         (output_statistics): Always print the number of locked states for
6121         each automaton.  Calculate total number of locked states here.
6122         (write_automata): Don't call output_dfa_max_issue_rate.
6123         * genattrtab.c: Define length_unit_log as a const variable.
6124         * genattr.c: Don't emit MAX_DFA_ISSUE_RATE.  Declare
6125         max_insn_queue_index const.
6126         * final.c (length_unit_log): Declare const.
6127         * doc/tm.texi: Remove all references to MAX_DFA_ISSUE_RATE.
6128
6129 2006-01-22  Zack Weinberg  <zackw@panix.com>
6130
6131         * genautomata.c:  Include vec.h, not varray.h.
6132         Delete vla_ptr_t, all of the VLA_PTR_ macros, and all of the
6133         VLA_HWINT_ macros.  Change vla_hwint_t to a typedef for
6134         VEC(vect_el_t,heap) *.  Convert all uses of VLA_* macros to
6135         VEC_* macros operating on appropriately typed vectors, or to
6136         malloced arrays when the size is known in advance.  Const-ify
6137         many char* variables and function arguments.  No functional changes.
6138         * Makefile.in (build/varray.o): Delete rule.
6139         (build/genattrtab): Depend on build/vec.o instead of build/varray.o.
6140         (build/genautomata.o): Depend on vec.h instead of $(VARRAY_H).
6141
6142 2006-01-22  Zack Weinberg  <zackw@panix.com>
6143
6144         * gensupport.c: Define get_insn_name and record_insn_name here.
6145         (read_md_rtx): Call record_insn_name as appropriate.
6146         * genattr.c, genattrtab.c, gencodes.c, genconfig.c, genemit.c
6147         * genextract.c, genflags.c, genopinit.c, genoutput.c, genpeep.c
6148         * genpreds.c, genrecog.c: Don't define get_insn_name nor
6149         record_insn_name.
6150         * Makefile.in (BUILD_SUPPORT, BUILD_PRINT): Fold into BUILD_RTL.
6151         (BUILD_VARRAY): Delete.
6152         (genprognormal): Rename genprogmd.  Fold in all programs from
6153         genprognoprint; also attrtab.
6154         (build/genattrtab): Just mention genautomata.o and varray.o.
6155         Reorganize a bit, add comments to make the categories clearer.
6156
6157 2006-01-22  Zack Weinberg  <zackw@panix.com>
6158
6159         * genconditions.c (condition_table, add_condition): Delete.
6160         (write_conditions): Don't emit n_insn_conditions nor
6161         insn_elision_unavailable.  Issue the gcc version #ifdef here,
6162         inside the table, with no #else clause ...
6163         (write_header): ...not here.
6164         (write_writer): New function.
6165         (main): Don't initialize condition_table.  Use add_c_test.
6166         Call write_writer.
6167         * gensupport.c (init_md_reader_args_cb): Handle multiple input
6168         files on the command line.
6169         (maybe_eval_c_test): Don't check insn_elision_unavailable.
6170         Return -1 if there is no entry in the table, don't abort.
6171         (add_c_test, traverse_c_tests): New functions.
6172         * gensupport.h (insn_elision_unavailable, insn_conditions)
6173         (n_insn_conditions): Delete declarations.
6174         (add_c_test, traverse_c_tests): Declare.
6175         * read-rtl.c: Include gensupport.h.
6176         (read_conditions): New function.
6177         (read_rtx): If read_rtx_1 returns 0, treat as EOF.
6178         (read_rtx_1): If we get EOF when we were looking for an initial
6179         open paren, return 0.  Call read_conditions when appropriate.
6180         * Makefile.in: Kill BUILD_EARLY_SUPPORT and all references to
6181         dummy-conditions.o.  Eliminate references to insn-conditions.o,
6182         or change them to build/gencondmd.o, as appropriate.  Remove
6183         insn-constants.h from $(simple_generated_h) and insn-conditions.c
6184         from $(simple_generated_c).  For all files remaining in those
6185         two lists, add insn-conditions.md to the generator command line.
6186         Give insn-constants.h/s-constants their own rules.  Add rules
6187         for build/gencondmd.c, s-conditions, insn-conditions.md, s-condmd.
6188         (build/read-rtl.o): Depend on gensupport.h.
6189         (genprognormal): Include preds.
6190         (genprogearly): Rename genprognoprint; only difference is now that
6191         they don't link with $(BUILD_PRINT).
6192         * dummy-conditions.c: Delete.
6193
6194 2006-01-22  Zack Weinberg  <zackw@panix.com>
6195
6196         * genextract.c: Don't include insn-config.h.  Do include vec.h.
6197         Declare vectors of int, char, and locstr.
6198         (locstr): New typedef.
6199         (struct extraction): Make all array fields into bare pointers.
6200         (insn_name_ptr, insn_name_ptr_size): Move down by get_insn_name.
6201         (insn_code_number): Delete.
6202         (accum_extract): New struct.
6203         (VEC_safe_set_locstr, VEC_char_to_string): New functions.
6204         (gen_insn): Take insn_code_number as an argument.  Use an
6205         accum_extract structure instead of loading data directly into
6206         a struct extraction, and having to know how big it might get.
6207         (walk_rtx): Operate entirely on an accum_extract structure.
6208         (print_path): Avoid unnecessary use of printf.
6209         (print_header): New function, split out of main.  Distinguish
6210         more carefully between an unrecognizable insn and an insn that
6211         has the code number of a define_expand.
6212         (main): Pass insn_code_number to gen_insn.  Call print_header
6213         only after parsing.  Avoid unnecessary use of printf.
6214         * Makefile.in (build/vec.o): New rule.
6215         (build/genextract): Depend on build/vec.o.
6216         (build/genextract.o): Don't depend on insn-config.h.
6217
6218 2006-01-22  Zack Weinberg  <zackw@panix.com>
6219
6220         * Makefile.in: Consolidate most rules that use $(CC_FOR_BUILD) and/or
6221         $(RUN_GEN).  Use pattern rules to factor out as much boilerplate as
6222         practical.  Eliminate per-generator-program link rules.
6223
6224 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
6225
6226         PR middle-end/24437
6227         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
6228         with a call expr to ...
6229         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
6230
6231 2006-01-23  Richard Guenther  <rguenther@suse.de>
6232
6233         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Add comment
6234         before make_edge with conditional EDGE_TRUE_VALUE.
6235
6236 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
6237         Jan Hubicka  <jh@suse.cz>
6238         Richard Guenther  <rguenther@suse.de>
6239
6240         PR rtl-optimization/25654
6241         * cfgexpand.c (aggregate_contains_union_type): New function.
6242         (add_alias_set_conflicts): Call it.  Make sure to add conflicts
6243         for structure variables that contain a union type.
6244
6245 2006-01-23  Richard Sandiford  <richard@codesourcery.com>
6246
6247         * gengtype.c (new_structure): Return the structure.
6248         (create_option): Add an extra "next" argument.
6249         (create_field): New function.
6250         (adjust_field_rtx_def): Use create_option and create_field.
6251         Remove a now-unnecessary call to find_structure.
6252         (adjust_field_tree_def): Likewise.
6253         (note_yacc_type): Remove an unnecessary call to find_structure.
6254         * gengtype.h (new_structure): Return the structure.
6255         (create_option): Add an extra argument.
6256         * gengtype-yacc.y (type): Remove unnecessary calls to find_structure.
6257         (option): Adjust calls to create_option.
6258
6259 2006-01-22  David Edelsohn  <edelsohn@gnu.org>
6260
6261         * config/rs6000/aix.h (STACK_BOUNDARY): Define.
6262
6263 2006-01-22  Paul Brook  <paul@codesourcery.com>
6264         Peter Barada  <peter@the-baradas.com>
6265
6266         * config/m68k/m68k.md: Add Coldfire FPU support.
6267         Define FP mode macro and associated attributes.
6268         Use it for float mode patterns.
6269         * config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
6270         (LIBCALL_VALUE): Use m68k_libcall_value.
6271         * config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
6272         (m68k_function_value): Ditto.
6273         (emit_move_sequence): Ditto.
6274         * config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
6275         * config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
6276         * config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
6277         (MULTILIB_EXCEPTIONS): Ditto.
6278         * config/m68k/m68k.opt: Add mcfv4e.
6279         * config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
6280         (m68k_compute_frame_layout): Include space for ColdFire FPU regs.
6281         (m68k_output_function_prologue): Save ColdFire FPU registers.
6282         (m68k_output_function_epilogue): Restore ColdFire FPU registers.
6283         (force_mode, fp_reg_operand, emit_move_sequence): New functions.
6284         (m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
6285         ColdFire FPU registers.
6286         (m68k_libcall_value, m68k_function_value): New functions.
6287         * config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
6288         (LIBCALL_VALUE): Use m68k_libcall_value.
6289         * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
6290         (MASK_COLDFIRE): Add MASK_CFV4E.
6291         (TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
6292         (MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
6293         (REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
6294         (GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
6295         (GO_IF_LEGITIMATE_ADDRESS): Use it.
6296         (LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
6297         * doc/invoke.tex: Document -mcfv4e on m68k.
6298
6299 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
6300
6301         * doc/contribute.texi: Change CVS to SVN and update the corresponding
6302         URL.
6303
6304 2006-01-21  Gabriel Dos Reis  <gdr@integrable-solutions.net>
6305
6306         PR c++/16190
6307         * c-opts.c (c_common_handle_option): Don't include
6308         -Wnon-virtual-dtor in -Wall; enable if -Weffc++.
6309         * doc/invoke.texi (C++ Dialect Options): Document that
6310         -Wnon-virtual-dtor is no longer included in -Wall.
6311
6312 2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>
6313
6314         * gcov.c (print_version), gcov-dump.c (print_version),
6315         mips-tdump.c (main), mips-tfile.c (main): Update copyright notice
6316         dates.
6317
6318 2006-01-21  Kenneth Zadeck <zadeck@naturalbridge.com>
6319
6320         * df-scan.c (problem_SCAN): Added NULL reset function.
6321         (df_scan_reset_blocks): Added code to call reset block function
6322         (df_bb_refs_delete) Fixed comment.
6323         (df_insn_refs_delete): Made tolerant of deleting non existent info
6324         for dataflow problems that need to be reset.
6325         * df-core.c (df_set_blocks): Ditto.
6326         * df.h (struct df_problem): Added reset_fun.
6327         * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR,
6328         problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field.
6329         (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New
6330         functions to clear out all references to def-use or use-def chains.
6331
6332 2006-01-21  Ben Elliston  <bje@au.ibm.com>
6333
6334         * varasm.c (assemble_real): Initialise data array.
6335
6336 2006-01-20  Paul Brook  <paul@codesourcery.com>
6337
6338         Merge from csl-arm-branch.
6339         2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
6340         * config/arm/arm.md (movdi): Force operands[1] to a register
6341         if we have a non-register source.
6342         (*arm_movdi, *movdf_soft_insn): Require that one of the
6343         operands be a register.
6344         * config/arm/iwmmxt.md (*iwmmxt_arm_movdi): Likewise.
6345         * config/arm/vfp.md (*arm_movdi_vfp, *movdf_vfp): Likewise.
6346
6347 2006-01-20  DJ Delorie  <dj@redhat.com>
6348
6349         * varasm.c (initialize_constant_valid_p): Allow pointers
6350         initialized from integer constants of lesser precision.
6351         (output_constant): Allow non-int-sized pointer modes to be
6352         initialized from integer constants.
6353
6354 2006-01-20  Joseph S. Myers  <joseph@codesourcery.com>
6355
6356         PR libstdc++/25524
6357         * cppdefault.h (struct default_include): Add multilib flag.
6358         * cppdefault.c (cpp_include_defaults): Set it.
6359         * c.opt (-imultilib): New option.
6360         * c-opts.c (imultilib): New.
6361         (c_common_handle_option): Handle -imultilib.
6362         (c_common_post_options): Likewise.
6363         * c-incpath.c (add_standard_paths, register_include_chains):
6364         Likewise.
6365         * c-incpath.h (register_include_chains): Add extra parameter.
6366         * gcc.c (do_spec_1): Generate -imultilib option.
6367         (The Specs Language): Update %I description.
6368         (process_command): Update copyright notice.
6369         * doc/cppopts.texi (-imultilib): Document.
6370         * doc/invoke.texi (-imultilib): Include in option summary.
6371         (%I): Update specs documentation.
6372
6373 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
6374
6375         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
6376
6377 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
6378
6379         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
6380         label numbers.
6381
6382 2006-01-20  Richard Guenther  <rguenther@suse.de>
6383         Steven Bosscher <stevenb.gcc@gmail.com>
6384
6385         PR rtl-optimization/24626
6386         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
6387         EDGE_TRUE_VALUE if in RTL mode.
6388
6389         Revert
6390         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
6391         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
6392
6393 2006-01-20  Dirk Mueller  <dmueller@suse.com>
6394
6395         PR c++/5520
6396         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
6397         instead of a special NOP marker.
6398         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
6399         NOP marker handling.
6400         * c-common.h (empty_body_warning): Add forward declaration.
6401         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
6402         Now uses IS_EMPTY_STMT() instead of special NOP markers.
6403
6404 2006-01-20  Paul Brook  <paul@codesourcery.com>
6405
6406         * Makefile.in (lang_checks): Keep going if mkdir fails.
6407
6408 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
6409
6410         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
6411         be able to clean out basic block when not necessary.
6412         (df_scan_free): Fixed to properly delete information if df is
6413         unused before calling df_finish.
6414         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
6415         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
6416         or comment typos.
6417         (df_bb_refs_delete): New function.
6418         (df_refs_delete): Moved per block code to df_bb_refs_delete.
6419         * df-core.c (df_set_blocks): Added code to properly clean out
6420         unused blocks if they are not part of the blocks to consider.
6421         Added additional null check.
6422         (df_compact_blocks): Added basic block parameter to free_bb_fun to
6423         be able to clean out basic block when not necessary
6424         * df.h (df_free_bb_function): Ditto.
6425         (df_bb_refs_delete): New function.
6426         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
6427         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
6428         basic block parameter to be able to clean out basic block when not
6429         necessary.
6430         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
6431         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
6432         Fixed to properly delete information if df is unused before
6433         calling df_finish.
6434
6435 2006-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
6436
6437         PR rtl-optimization/25799
6438         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
6439         Corrected confluence operator to remove bits from op2 before oring
6440         with op1 rather than removing bits from op1.
6441         (df_ru_transfer_function): Corrected test on wrong bitmap which
6442         caused infinite loop.  Both of these problems were introduced in
6443         the dataflow rewrite.
6444
6445 2006-01-19  DJ Delorie  <dj@redhat.com>
6446
6447         * reload1.c (find_reload_regs): Note the details of reload
6448         failures in the dump file.
6449         (spill_failure): Likewise.
6450
6451 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
6452
6453         * loop-iv.c: Include df.h and hashtab.h.
6454         (enum iv_grd_result): New enum.
6455         (DF_REF_IV, DF_REF_IV_SET): New macros.
6456         (struct biv_entry): New.
6457         (df, bivs): New global variables.
6458         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
6459         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
6460         Removed.
6461         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
6462         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
6463         analyzed_for_bivness_p, record_biv): New functions.
6464         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
6465         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
6466         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
6467         UD chains.
6468         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
6469         analysed.
6470         (iv_number_of_iterations): Use new interface to iv analysis.
6471         * loop-unroll.c: Do not include varray.h.
6472         (analyze_iv_to_split_insn): Use new interface to iv
6473         analysis.
6474         * loop-unswitch.c (may_unswitch_on): Ditto.
6475         * df.c (df_bitmaps_free): Only work for bbs for that structures are
6476         allocated.
6477         (df_bb_modify): Realloc tables to the new index.
6478         (df_find_use): New function.
6479         * df.h (df_find_use): Declare.
6480         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
6481         outmode.
6482         * cfgloop.h (struct rtx_iv): Remove analysed field.
6483         (iv_get_reaching_def): Removed.
6484         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
6485         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
6486         (loop-iv.o): Add df.h and hashtab.h dependency.
6487         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
6488
6489 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
6490
6491         PR target/25668
6492         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
6493         Double TFmode.
6494         (__floatundisf, __floatundidf): Likewise.
6495         * libgcc2.h (IS_IBM_EXTENDED): Define.
6496
6497 2006-01-19  DJ Delorie  <dj@redhat.com>
6498
6499         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
6500
6501 2006-01-19  Paul Brook  <paul@codesourcery.com>
6502
6503         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
6504         as nothrow when unwinding tables are disabled.
6505
6506 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6507
6508         PR testsuite/25171
6509         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
6510         of bit-field" when in system header.
6511
6512 2006-01-19  DJ Delorie  <dj@redhat.com>
6513
6514         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
6515         the 16 bit shift limit of the m16c.
6516
6517 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
6518
6519         PR target/22099
6520         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
6521         * config/i386/i386.c (output_set_got): Output the label if we have one
6522         for the TARGET_DEEP_BRANCH_PREDICTION case.
6523
6524 2006-01-19  Jan Hubicka  <jh@suse.cz>
6525             H.J. Lu  <hongjiu.lu@intel.com>
6526             Evandro Menezes <evandro.menezes@amd.com>
6527
6528         * invoke.texi (generic): Document
6529         (i686) Update.
6530         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
6531         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
6532         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
6533         (x86_use_incdec, x86_pad_returns): New variables
6534         (TARGET_CPU_DEFAULT_generic): New constant
6535         (TARGET_CPU_DEFAULT_NAMES): Add generic.
6536         (enum processor_type): Add generic32 and generic64.
6537         * i386.md (cpu attribute): Add generic32/generic64
6538         (movhi splitter): Behave sanely when both partial_reg_dependency and
6539         partial_reg_stall are set.
6540         (K8 splitters): Enable for generic as well.
6541         * predicates.md (incdec_operand): Use TARGET_INCDEC
6542         (aligned_operand): Avoid memory mismatch stalls.
6543         * athlon.md: Enable for generic64, new patterns for 128bit moves.
6544         * ppro.md: Enable for generic32
6545         * i386.c (generic64_cost, generic32_cost): New.
6546         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
6547         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
6548         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
6549         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
6550         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
6551         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
6552         x86_partial_reg_dependency, x86_memory_mismatch_stall,
6553         x86_accumulate_outgoing_args, x86_prologue_using_move,
6554         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
6555         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
6556         Enable for generic.
6557         (x86_use_incdec, x86_pad_returns): New.
6558         (override_options): Add generic32 and generic64, translate "generic"
6559         to generic32/generic64 and "i686" to "generic32", refuse
6560         "generic32"/"generic64" as arch target.
6561         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
6562         (ix86_reorg): Honor PAD_RETURNS.
6563
6564 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
6565
6566         * tree-pretty-print.c (dump_generic_node): Handle
6567         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
6568         * cgraph.c (cgraph_expand_queue): Rename from
6569         cgraph_analyze_queue.  Update all users.
6570         * cgraphunit.c (cgraph_assemble_pending_functions): Process
6571         cgraph_expand_queue.
6572         (cgraph_expand_all_functions): Likewise.
6573         (cgraph_finalize_pending_functions): Remove.  Update callers.
6574
6575         * tree.h (OMP_DIRECTIVE_P): Define.
6576         (OMP_PARALLEL_FN): Define.
6577         (OMP_PARALLEL_DATA_ARG): Define.
6578         (OMP_SECTIONS_SECTIONS): Define.
6579         * tree-pass.h (pass_expand_omp): Declare.
6580         * omp-low.c (struct omp_region): Declare.
6581         (struct omp_context): Remove fields 'parallel_type',
6582         'parallel_start_ix' and 'parallel_start_additional_args'.
6583         Update all users.
6584         (struct omp_for_data): Rename from struct expand_omp_for_data.
6585         (omp_regions): New static variable.
6586         (root_omp_region): New static variable.
6587         (find_omp_clause): Make static.
6588         (is_in_combined_parallel_ctx): Remove.
6589         (is_combined_parallel): New.
6590         (extract_omp_for_data): Move earlier in the file.
6591         (workshare_safe_to_combine_p): New.
6592         (get_ws_args_for): New.
6593         (determine_parallel_type): Move earlier in the file.
6594         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
6595         child function.
6596         (omp_copy_decl): Likewise.
6597         (create_omp_child_function): Likewise.
6598         (lookup_omp_region): New.
6599         (dump_omp_region): New.
6600         (debug_omp_region): New.
6601         (debug_all_omp_regions): New.
6602         (new_omp_region): New.
6603         (scan_omp_parallel): If parallel_nesting_level > 1, the
6604         directive is nested within another parallel directive.
6605         Set OMP_PARALLEL_FN.
6606         (scan_omp_for): Do not try to handle combined parallel+for
6607         cases.
6608         Remove FIXME comment.
6609         (scan_omp_nested): Remove.
6610         (scan_omp_1): Do not call scan_omp_nested when
6611         parallel_nesting_level is > 1.
6612         Do not change the DECL_CONTEXT of local variables found.
6613         (lookup_decl_in_outer_ctx): New.
6614         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
6615         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
6616         (lower_reduction_clauses): Rename from expand_reduction_clauses.
6617         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
6618         If CTX is nested, lookup VAR in the outer context when
6619         building copy assignment.
6620         (lower_send_clauses): Rename from expand_send_clauses.
6621         If CTX is nested, lookup VAR in the outer context when
6622         building copy assignments.
6623         (lower_send_shared_vars): Rename from expand_send_shared_vars.
6624         If CTX is nested, lookup VAR in the outer context when
6625         building copy assignments.
6626         (expand_parallel_call): Rename from build_parallel_call.
6627         Handle combined parallel+workshare cases.
6628         Re-implement to emit code into the CFG.
6629         (list2chain): New.
6630         (expand_omp_parallel): Re-implement to emit code into the CFG.
6631         Call move_sese_region_to_fn to outline the sub-graph
6632         containing the parallel region.
6633         (expand_omp_for_1): Remove.
6634         (expand_omp_for_generic): Re-implement to emit code into the
6635         CFG.
6636         (expand_omp_for_static_nochunk): Likewise.
6637         (expand_omp_for_static_chunk): Likewise.
6638         (expand_omp_for): Likewise.
6639         (expand_omp_sections): Likewise.
6640         (remove_exit_barriers): New.
6641         (expand_omp_synch): New.
6642         (expand_omp): New.
6643         (build_omp_regions_1): New.
6644         (build_omp_regions): New.
6645         (execute_expand_omp): New.
6646         (gate_expand_omp): New.
6647         (pass_expand_omp): Define.
6648         (lower_omp_sections): Rename from expand_omp_sections.
6649         Set OMP_SECTIONS_SECTIONS.
6650         (lower_omp_single_simple): Rename from expand_omp_single_simple.
6651         (lower_omp_single_copy): Rename from expand_omp_single_copy.
6652         (lower_omp_single): Rename from expand_omp_simple.
6653         (lower_omp_master): Rename from expand_omp_master.
6654         (lower_omp_ordered): Rename from expand_omp_ordered.
6655         (lower_omp_critical): Rename from expand_omp_critical.
6656         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
6657         (lower_omp_for): Re-implement.
6658         (lower_omp_parallel): Re-implement.
6659         (lower_regimplify): Rename from expand_regimplify.
6660         (lower_omp_1): Rename from expand_omp_1.
6661         If there are syntax errors in the program, replace every
6662         OpenMP directive with NOP.
6663         Call lower_omp_* instead of expand_omp_*.
6664         (lower_omp): Rename from expand_omp.
6665
6666         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
6667         * tree-gimple.h (enum omp_parallel_type): Remove.
6668         (gimple_boolify): Declare extern.
6669         (find_omp_clause, determine_parallel_type): Remove.
6670
6671         * gimple-low.c (lower_omp_directive): New.
6672         (lower_stmt): Call it.
6673         (record_vars_into): Move from ...
6674         (record_vars): ... here.
6675         Call record_vars_into with current_function_decl.
6676
6677         * gimplify.c (struct gimplify_ctx): Remove fields
6678         combined_pre_p and combined_ctxp.  Update users.
6679         (get_formal_tmp_var): Add documentation.
6680         (gimple_boolify): Make extern.
6681         (gimplify_expr_in_ctx): Remove.  Update callers.
6682         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
6683         will always be a BIND_EXPR.
6684         (gimplify_expr): Handle OMP_RETURN_EXPR.
6685         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
6686         (OMP_PARALLEL): Add 3 operands.
6687         (OMP_SECTIONS): Add 1 operand.
6688         (OMP_RETURN_EXPR): Define.
6689
6690         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
6691         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
6692         * tree-iterator.c (alloc_stmt_list): Assert that we are not
6693         creating a circular free list.
6694         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
6695
6696         * tree-flow.h (move_sese_region_to_fn): Declare.
6697         (record_vars_into): Declare.
6698         * tree-cfg.c (make_omp_sections_edges): New.
6699         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
6700         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
6701         OMP_SECTIONS and OMP_SECTION.
6702         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
6703         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
6704         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
6705         (gather_blocks_in_sese_region): New.
6706         (struct move_stmt_d): Declare.
6707         (move_stmt_r): New.
6708         (move_block_to_fn): New.
6709         (move_sese_region_to_fn): New.
6710
6711         * passes.c (init_optimization_passes): Schedule
6712         pass_expand_omp after pass_init_datastructures.
6713
6714         * tree-ssa-operands.c (get_expr_operands): Handle
6715         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
6716         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
6717
6718 2006-01-19  Jeff Law  <law@redhat.com>
6719
6720         * tree-vrp.c (extract_range_from_assert): Refine the result range
6721         if the variable referenced by the ASSERT_EXPR has a range and
6722         either the tentative result range or the previous range is a
6723         VR_ANTI_RANGE.
6724
6725 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
6726
6727         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
6728
6729 2006-01-19  Jan Hubicka  <jh@suse.cz>
6730
6731         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
6732
6733 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
6734
6735         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
6736         (expand_compound_operation, expand_field_assignment): Fail if the
6737         bit lengths of an extract operation are out of range.
6738         (make_extraction): Compute wanted_inner_mode based on the position
6739         and length of the extraction.  Make it extraction_mode for non-constant
6740         positions, and do not modify offset in that case.  When generating a
6741         new MEM, use a mode that can hold the extraction while keeping correct
6742         alignment.  Remove code that supported MEMs wrapped by USEs.
6743         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
6744
6745 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
6746
6747         * config/s390/s390.md ("Y", "y"): New mode attribute.
6748         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc",
6749         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
6750         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64",
6751         "*addsi3_imm_cc", "*addsi3_carry1_cc",
6752         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
6753         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
6754         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc",
6755         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
6756         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
6757         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
6758         "addsi3", "subsi3"): Insn patterns removed.
6759         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
6760         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
6761         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
6762         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
6763         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly",
6764         "*sub<mode>3_cconly2"): New insn patterns.
6765         ("addsi3", "subsi3"): New expanders.
6766
6767 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
6768
6769         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
6770         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
6771         existing STMT_VINFO_VECTYPE if available.
6772         (vect_mark_relevant): Add special handling for stmts that are
6773         marked as STMT_VINFO_IN_PATTERN_P.
6774         (vect_analyze_loop): Call vect_pattern_recog.
6775         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
6776         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
6777         stmt_info.
6778         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
6779         (vect_recog_func_ptr): New function-pointer type.
6780         * tree-vect-patterns.c: New file.
6781         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
6782         (vect_recog_dot_prod_pattern, vect_pattern_recog):
6783         (vect_pattern_recog_1): New functions.
6784         (vect_pattern_recog_funcs): New array of function pointers.
6785
6786         * tree-vectorizer.h (ternary_op): New enum value.
6787         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
6788         declaration. Revised documentation. Removed redundant dump prints.
6789         Removed redundant argument. Added support for reduction patterns.
6790         (vectorizable_reduction): Added support for reduction patterns.
6791         (vect_transform_stmt): Added support for patterns.
6792
6793         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
6794         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
6795         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
6796         (expand_widen_pattern_expr): New function.
6797         (init_optabs): Initialize new optabs udot_prod_optab,
6798         sdot_prod_optab.
6799         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
6800         (sdot_prod_optab, udot_prod_optab): Define new optabs.
6801         (expand_widen_pattern_expr): New function declaration.
6802         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
6803         tree-codes.
6804         * tree-inline.c (estimate_num_insns_1): Added cases for new
6805         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
6806         * tree-pretty-print.c (dump_generic_node): Likewise.
6807         (op_prio): Likewise.
6808         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
6809         * tree-ssa-operands.c (get_expr_operands): Added case for
6810         DOT_PROD_EXPR.
6811         * tree-vect-patterns.c (widened_name_p): New function.
6812         (vect_recog_dot_prod_pattern): Added function implementation.
6813         * tree-vect-transform.c (get_initial_def_for_reduction): Added
6814         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
6815         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
6816         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
6817
6818         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
6819         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
6820         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
6821         (init_optabs): Initialize new optabs widen_ssum_optab,
6822         widen_usum_optab.
6823         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
6824         (widen_ssum_optab, widen_usum_optab): Define new optabs.
6825         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
6826         use instead of type of def.
6827         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
6828         function implementation.
6829         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
6830         widen_ssumv8hi): New.
6831
6832         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
6833         patterns.
6834
6835 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
6836
6837         PR c/25805
6838         * c-decl.c (add_flexible_array_elts_to_size): New function.
6839         (finish_decl): Use it.
6840
6841 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
6842
6843         * diagnostic.h: Include options.h.
6844         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
6845         dependancies for diagnostic.h.
6846         * Makefile.in (DIAGNOSTIC_H): Add options.h.
6847
6848 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
6849
6850         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
6851         (ssa_ro_call_cache_valid): Ditto.
6852         * tree-ssa-alias.c (sort_tags_by_id): New function.
6853         (init_transitive_clobber_worklist): Ditto.
6854         (add_to_worklist): Ditto.
6855         (mark_aliases_call_clobbered): Ditto.
6856         (compute_tag_properties): Ditto.
6857         (set_initial_properties): Ditto.
6858         (compute_call_clobbered): Ditto.
6859         (compute_may_aliases):  Call compute_call_clobbered and grouping.
6860         (compute_flow_sensitive_aliasing): Remove clobbering related code.
6861         (compute_flow_insensitive_aliasing): Grouping now happens in our
6862         caller.
6863         (setup_pointers_and_addressables): Remove clobbering related code.
6864         (add_may_alias): Ditto.
6865         (replace_may_alias): Ditto.
6866         (get_nmt_for): Ditto.
6867         (create_global_var):
6868         (is_escape_site): Return an escape_type enumeration.
6869         * tree-flow-inline.h (is_call_clobbered):  Global var does not
6870         imply call clobbered.
6871         (mark_call_clobbered): Take a reason for marking this. Remove
6872         marking of globalness, and cache invalidation.
6873         (clear_call_clobbered): Remove cache invalidation code.
6874         * tree-dfa.c (dump_variable): If details is on, dump the reason
6875         for escaping.
6876         * tree-outof-ssa.c (create_temp): Copy escape mask from original
6877         variable.
6878         * tree-flow.h (struct ptr_info_def): Add escape mask member.
6879         (struct var_ann_d): Ditto.
6880         (enum escape_type): New.
6881         (mark_call_clobbered): Adjust prototype.
6882         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
6883         are never call clobbered.
6884         Record reasons for escaping.
6885         * tree-ssa-structalias.h (is_escape_site): Update prototype.
6886         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
6887         (ssa_ro_call_cache_valid): Ditto.
6888         (clobbered_v_may_defs): Ditto.
6889         (clobbered_vuses): Ditto.
6890         (ro_call_vuses): Ditto.
6891         (clobber_stats): New.
6892         (init_ssa_operands): Zero out clobber stats.
6893         (fini_ssa_operands): Print out clobber stats.
6894         (get_call_expr_operands): Pass callee fndecl to
6895         add_call_read_ops).
6896         (add_call_clobber_ops): Remove use of cache.
6897         Add use of PURE_CONST information.
6898         (add_call_read_ops): Remove use of cache.
6899         Add use of static not_read information.
6900
6901 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
6902
6903         Introduce TLS descriptors for i386 and x86_64.
6904         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
6905         (TARGET_ANY_GNU_TLS): New macro.
6906         (enum tls_dialect): Added TLS_DIALECT_GNU2.
6907         (struct machine_function): Add tls_descriptor_call_expanded_p.
6908         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
6909         (ix86_current_function_calls_tls_descriptor): Likewise.
6910         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
6911         (override_options): Introduce gnu2 tls dialect.
6912         (ix86_frame_pointer_required): Functions containing TLSCALLs are
6913         not leaves.
6914         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
6915         Likewise.
6916         (legitimize_tls_address): Adjust logic for GNU2 TLS.
6917         (ix86_init_machine_status): Initialize new field.
6918         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
6919         (ix86_tls_module_base): New.
6920         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
6921         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
6922         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
6923         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
6924         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
6925         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
6926         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
6927         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
6928         * config/i386/predicates.md (tls_modbase_operand): New.
6929         (tp_or_register_operand): New.
6930
6931 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
6932
6933         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
6934         (look_for_address_of): Ditto.
6935         (ipa_init): Walk the function decls.
6936         (static_execute): Don't set readonly on FUNCTION_DECL's.
6937
6938 2006-01-18  Roger Sayle  <roger@eyesopen.com>
6939
6940         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
6941         for shifts where the source and destination registers are different.
6942
6943 2006-01-18  Paul Brook  <paul@codesourcery.com>
6944
6945         Merge from csl-arm-branch.
6946         2005-03-14  Julian Brown  <julian@codesourcery.com>
6947         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
6948         (aeabi_llsl): Likewise.
6949         (ashrdi3): Likewise.
6950         (aeabi_lasr): Likewise.
6951         (lshrdi3): Likewise.
6952         (aeabi_llsr): Likewise.
6953         2005-03-10  Julian Brown  <julian@codesourcery.com>
6954         * config.gcc: Disable shared libgcc for SymbianOS.
6955         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
6956
6957 2006-01-18  DJ Delorie  <dj@redhat.com>
6958
6959         * c-pragma.c (handle_pragma_diagnostic): New.
6960         (init_pragma): Register it.
6961         * doc/extend.texi: Document it.
6962
6963         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
6964         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
6965         (diagnostic_context): Add classify_diagnostic[].
6966         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
6967         as errors if they're overridden to DK_WARNING.
6968         (diagnostic_initialize): Initialize classify_diagnostic[].
6969         (diagnostic_set_kind_override): New.
6970         (diagnostic_report_diagnostic): Check for kind changes.
6971         * opts.c (common_handle_option): Take lang_mask.  Update callers.
6972         Handle OPT_Werror_.
6973         * common.opt (Werror=): New.
6974         * doc/invoke.texi: Document -Werror=*
6975
6976 2006-01-18  Jeff Law  <law@redhat.com>
6977
6978         * tree-vrp.c (test_for_singularity): Correct test for new
6979         min limit.  Use operand_equal_p rather than pointer equality
6980         for testing if new min/max values are equal.
6981
6982         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
6983         using range information until after propagation and folding.
6984
6985 2006-01-18  Richard Henderson  <rth@redhat.com>
6986             Aldy Hernandez  <aldyh@redhat.com>
6987             Jakub Jelinek  <jakub@redhat.com>
6988             Diego Novillo  <dnovillo@redhat.com>
6989
6990         * omp-low.c: New file.
6991         * c-omp.c: New file.
6992
6993 2006-01-18  Richard Henderson  <rth@redhat.com>
6994             Jakub Jelinek  <jakub@redhat.com>
6995             Diego Novillo  <dnovillo@redhat.com>
6996
6997         * doc/invoke.texi: Document -fopenmp.
6998         * tree-dump.h (debug_function): Declare.
6999         * hooks.c (hook_bool_tree_bool_false): New function.
7000         (hook_tree_tree_null): Remove.
7001         (hook_tree_tree_tree_null): New.
7002         * hooks.h: Update to match.
7003         * tree-pretty-print.c (debug_tree_chain): New.
7004         (print_generic_expr): Handle TDF_CHAIN.
7005         (dump_generic_node): Handle BLOCK.
7006         Do not abort with incomplete SWITCH_EXPRs.
7007         Do not dump body of an OpenMP directive if TDF_SLIM is given.
7008         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
7009         print space after directive name.
7010         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
7011         Handle OMP_MASTER and OMP_ORDERED.
7012         Handle printing of OMP_BODY just in one place, goto
7013         dump_omp_body in the rest of OMP_* nodes that have
7014         OMP_BODY.
7015         Don't handle clause nodes here.  Update omp statements to
7016         use dump_omp_clauses.
7017         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
7018         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
7019         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
7020         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
7021         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
7022         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
7023         Adjust output for GOMP_PARALLEL.
7024         (dump_omp_clauses): New.
7025         (print_declaration): Dump DECL_VALUE_EXPR.
7026         (op_symbol_1): Split out of op_symbol.
7027         (dumping_stmts): Remove.  Update all users.
7028         * cgraph.c (cgraph_analyze_queue): New.
7029         (cgraph_add_new_function): New.
7030         * cgraph.h (cgraph_analyze_queue): Declare.
7031         (cgraph_add_new_function): Declare.
7032         (cgraph_lower_function): Remove.
7033         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
7034         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
7035         and TYPE_P nodes in its default clause.
7036         (empty_body_p): New.
7037         (tree_range_check_failed): New.
7038         (build5_stat): New.
7039         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
7040         OMP_CLAUSE_REDUCTION_MERGE,
7041         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
7042         OMP_CLAUSE_PRIVATE_DEBUG,
7043         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
7044         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
7045         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
7046         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
7047         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
7048         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
7049         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
7050         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
7051         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
7052         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
7053         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
7054         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
7055         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
7056         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
7057         (TREE_RANGE_CHECK): New.
7058         (empty_body_p): Declare.
7059         (enum omp_clause_default_kind): New.
7060         (build_string_literal): Declare.
7061         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
7062         (build5_stat, build5): Declare.
7063         * tree-pass.h (TDF_CHAIN): Define.
7064         * tree-pass.h (PROP_gimple_lomp): Define.
7065         (pass_lower_omp): Declare.
7066         * diagnostic.h (debug_tree_chain): Declare.
7067         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
7068         mode_for_size.
7069         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
7070         * builtins.c (build_string_literal): Make extern.
7071         * gcc.c (include_spec_function): New.
7072         (static_spec_functions): Add it.
7073         (main): Move load of libgomp.spec ...
7074         (LINK_COMMAND_SPEC): ... here.
7075         (link_gomp_spec): New.
7076         (static_specs): Include it.
7077         (LINK_COMMAND_SPEC): Add link_gomp.
7078         (GOMP_SELF_SPECS): New.
7079         (driver_self_specs): Include it.
7080         (switch_matches): Don't mark inline.
7081         (main): Load libgomp.spec.
7082         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
7083         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
7084         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
7085         * tree-gimple.h (enum omp_parallel): Declare.
7086         (determine_parallel_type): Declare.
7087         (omp_firstprivatize_variable): Declare.
7088         (omp_reduction_init): Declare.
7089         (diagnose_omp_structured_block_errors): Declare.
7090         (struct walk_stmt_info): Add want_return_expr.
7091         (struct walk_stmt_info): Add want_bind_expr, want_locations.
7092         (find_omp_clause): Declare.
7093         (insert_field_into_struct): Declare.
7094         (struct walk_stmt_info): Move from tree-nested.c
7095         (walk_stmts): Declare.
7096         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
7097         to 200505.
7098         * cgraphunit.c (cgraph_lower_function): Make static.
7099         (cgraph_finalize_pending_functions): New.
7100         (cgraph_finalize_function): Call it.
7101         (cgraph_finalize_compilation_unit): Likewise.
7102         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
7103         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
7104         (BT_FN_UINT_UINT): New.
7105         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
7106         DEF_FUNCTION_TYPE_VAR_4): Document.
7107         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
7108         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
7109         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
7110         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
7111         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
7112         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
7113         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
7114         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
7115         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
7116         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
7117         into separate files.
7118         (DEF_GOMP_BUILTIN): New.
7119         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
7120         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
7121         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
7122         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
7123         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
7124         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
7125         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
7126         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
7127         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
7128         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
7129         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
7130         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
7131         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
7132         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
7133         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
7134         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
7135         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
7136         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
7137         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
7138         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
7139         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
7140         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
7141         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
7142         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
7143         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
7144         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
7145         * sync-builtins.def: New file, moved from builtins.def.
7146         * omp-builtins.def: New file, moved from builtins.def.
7147         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
7148         * gimple-low.c (lower_function_body): Clear data.
7149         (lower_stmt): Do not handle COMPOUND_EXPR.
7150         Remove call to print_node_brief.
7151         * c-tree.h (c_finish_omp_clauses): New prototype.
7152         (C_DECL_THREADPRIVATE_P): Define.
7153         (lookup_name_no_remap, c_omp_remap_private): Remove
7154         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
7155         (check_for_loop_decls): Update decl.
7156         (lookup_name_no_remap, c_omp_remap_private): Declare.
7157         (build_indirect_ref, build_modify_expr, pushdecl,
7158         pushdecl_top_level): Move to c-common.h.
7159         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
7160         before the switch, but just in the 2 places that need it.
7161         * c-decl.c (diagnose_mismatched_decls): Do not check for
7162         mismatched thread-local attributes when OLDDECL is marked
7163         threadprivate and NEWDECL has no thread-local attributes.
7164         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
7165         (c_gimple_diagnostics_recursively): Rename from
7166         c_warn_unused_result_recursively.  Invoke
7167         diagnose_omp_structured_block_errors.
7168         (check_for_loop_decls): Return a singular decl found.
7169         * langhooks.c (lhd_omp_predetermined_sharing): Return
7170         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
7171         (lhd_omp_firstprivatize_type_sizes): New.
7172         (lhd_omp_assignment): New.
7173         (lhd_omp_predetermined_sharing): New.
7174         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
7175         (struct lang_hooks_for_types): Add
7176         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
7177         omp_predetermined_sharing, omp_disregard_value_expr,
7178         omp_private_debug_clause, omp_clause_default_ctor,
7179         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
7180         (c_finish_omp_clauses): New.
7181         (c_finish_bc_stmt): Diagnose break within omp for.
7182         (c_begin_omp_parallel, c_finish_omp_parallel): New.
7183         (build_unary_op): Return error_mark after reporting
7184         a readonly_error.
7185         (build_modify_expr): Likewise.
7186         * gimplify.c: Include optabs.h and pointer-set.h.
7187         (enum gimplify_omp_var_data): Declare.
7188         (struct gimplify_omp_ctx): Declare.
7189         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
7190         and combined_ctxp.
7191         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
7192         (push_gimplify_context, pop_gimplify_context): Allow nesting.
7193         (splay_tree_compare_decl_uid): New.
7194         (new_omp_context): New.
7195         (delete_omp_context): New.
7196         (gimple_add_tmp_var): Call omp_add_variable.
7197         (gimplify_bind_expr): Likewise.
7198         (gimplify_var_or_parm_decl): If omp_notice_variable returned
7199         true, disregard DECL_VALUE_EXPR on the decl if any.
7200         (gimplify_expr_in_ctx): New.
7201         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
7202         omp_add_variable, omp_notice_variable, omp_is_private
7203         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
7204         gimplify_adjust_omp_clauses, gimplify_omp_parallel
7205         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
7206         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
7207         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
7208         gimplify_omp_atomic): New.
7209         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
7210         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
7211         OMP_CRITICAL and OMP_ATOMIC.
7212         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
7213         * c-pragma.h (enum pragma_kind): Add
7214         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
7215         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
7216         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
7217         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
7218         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
7219         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
7220         PRAGMA_OMP_THREADPRIVATE.
7221         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
7222         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
7223         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
7224         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
7225         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
7226         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
7227         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
7228         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
7229         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
7230         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
7231         * tree-ssa-dce.c (find_control_dependence): Do not assume that
7232         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
7233         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
7234         OpenMP directives.
7235         (struct nesting_info): Add field_map,
7236         suppress_expansion, debug_var_chain.
7237         (create_nesting_tree): Initialize them.
7238         (lookup_field_for_decl): Use field_map.
7239         (get_nonlocal_debug_decl, get_local_debug_decl): New.
7240         (convert_local_omp_clauses): New.
7241         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
7242         (walk_body): Split out of walk_function.
7243         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
7244         (convert_nonlocal_reference): Handle omp statements.
7245         (convert_local_reference): Likewise.
7246         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
7247         (unnest_nesting_tree): New.
7248         (lower_nested_functions): Call it.
7249         (insert_field_into_struct): Make extern.
7250         (struct walk_stmt_info): Move to tree-gimple.h.
7251         (walk_stmts): Make extern.
7252         * omp-builtins.def: New file.
7253         * tree-iterator.c (expr_only): Clarify comment.
7254         * c-common.h (pushdecl_top_level, pushdecl,
7255         build_modify_expr, build_indirect_ref,
7256         c_finish_omp_master, c_finish_omp_critical,
7257         c_finish_omp_ordered, c_finish_omp_barrier,
7258         c_finish_omp_atomic, c_finish_omp_flush,
7259         c_finish_omp_for, c_split_parallel_clauses,
7260         omp_clause_default_kind, c_omp_sharing_predetermined,
7261         c_omp_remap_decl): Declare.
7262         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
7263         (OBJS-common): Add omp-low.o.
7264         (c-omp.o, omp-low.o): Add.
7265         (gimplify.o): Add dependency on $(OPTABS_H).
7266         (GTFILES): Add omp-low.c.
7267         (gt-stringpool.h): Add.
7268         * tree-cfg.c (set_bb_for_stmt): Do not update the
7269         block-to-labels map if we are currently expanding to RTL.
7270         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
7271         checks.
7272         Handle IDENTIFIER_NODE.
7273         (tree_verify_flow_info): Do not ICE when emitting error
7274         messages about invalid labels.
7275         (dump_function_to_file): Reset CFUN before emitting the body
7276         of the function.
7277         (debug_function): New.
7278         * passes.c (init_optimization_passes): Schedule
7279         pass_lower_omp.
7280         * langhooks-def.h (lhd_omp_predetermined_sharing,
7281         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
7282         Declare.
7283         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
7284         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
7285         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
7286         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
7287         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
7288         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
7289         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
7290         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
7291         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
7292         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
7293         (LANG_HOOK_DECLS): Use them.
7294
7295 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
7296             Richard Henderson  <rth@redhat.com>
7297             Jakub Jelinek  <jakub@redhat.com>
7298             Diego Novillo  <dnovillo@redhat.com>
7299
7300         * c-parser.c (pragma_omp_clause): Define.
7301         (c_parser_declaration_or_fndef): Document OpenMP syntax.
7302         (c_parser_compound_statement): Likewise.
7303         (c_parser_statement): Likewise.
7304         (c_parser_pragma): Handle omp pragmas.
7305         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
7306         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
7307         (c_parser_omp_clause_name, check_no_duplicate_clause,
7308         c_parser_omp_variable_list,
7309         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
7310         c_parser_omp_clause_copyprivate,
7311         c_parser_omp_clause_default,
7312         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
7313         c_parser_omp_clause_lastprivate,
7314         c_parser_omp_clause_nowait,
7315         c_parser_omp_clause_num_threads,
7316         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
7317         c_parser_omp_clause_reduction,
7318         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
7319         c_parser_omp_all_clauses, c_parser_omp_structured_block,
7320         c_parser_omp_atomic, c_parser_omp_barrier,
7321         c_parser_omp_critical, c_parser_omp_flush,
7322         c_parser_omp_for_loop, c_parser_omp_for,
7323         c_parser_omp_master, c_parser_omp_ordered,
7324         c_parser_omp_sections_scope, c_parser_omp_sections,
7325         c_parser_omp_parallel, c_parser_omp_single,
7326         c_parser_omp_construct, c_parser_omp_threadprivate): New.
7327         * c-pragma.c (init_pragma): Do omp pragma registration here.
7328         * c.opt (fopenmp): New flag.
7329
7330 2006-01-18  Eric Christopher  <echristo@apple.com>
7331
7332         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
7333         * config/darwin.h (GOMP_SELF_SPECS): Define.
7334
7335 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
7336
7337         * rtl.h: Remove the prototype for reg_alloc.
7338
7339 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7340
7341         PR target/25731
7342         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
7343         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
7344         sjlj and dwarf2 exception handling.
7345         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
7346         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
7347         * pa/pa.c (function_value): Treat complex and vector types as
7348         aggregates.
7349         (function_arg): Likewise.  Only pass scalar floats in the floating
7350         point argument registers.
7351         * pa/t-slibgcc-dwarf-ver: New file.
7352         * pa/t-slibgcc-sjlj-ver: New file.
7353         * pa/t-slibgcc-elf-ver: Delete file.
7354
7355 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
7356
7357         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
7358         unlikely_test_section_p test.
7359
7360 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
7361
7362         * mode-switching.c (optimize_mode_switching): Make it static.
7363         * basic-block.h: Remove the prototype for
7364         optimize_mode_switching.
7365
7366         * modulo-sched.c (sms_schedule): Make it static.
7367         * rtl.h: Remove the prototype for sms_schedule.
7368
7369         * postreload-gcse.c (gcse_after_reload_main): Make it static.
7370         * rtl.h: Remove the prototype for gcse_after_reload_main.
7371
7372         * reg-stack.c (reg_to_stack): Make it static.
7373         * rtl.h: Remove the prototype for reg_to_stack.
7374
7375         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
7376         Make them static.
7377         * rtl.h: Remove the prototypes for regrename_optimize and
7378         copyprop_hardreg_forward.
7379
7380 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
7381
7382         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
7383         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
7384         Test against the appropriate null constant for the mode.
7385         If 'fixup_overlap' is true, swap the operands if they overlap.
7386         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
7387         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
7388         alpha_split_tmode_pair and adjust for above change.
7389         * config/alpha/alpha.md (movtf_internal): Adjust call to
7390         alpha_split_tfmode_pair and rely on it to swap the operands.
7391         (movti_internal): New insn and post-reload splitter.
7392         (movti): New expander.
7393
7394 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
7395
7396         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
7397         operands.
7398
7399 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
7400
7401         * rtlanal.c (global_reg_mentioned_p_1,
7402         global_reg_mentioned_p): Remove.
7403         * rtl.h: Remove the prototype for global_reg_mentioned_p.
7404
7405         * flow.c (initialize_uninitialized_subregs): Make it static.
7406         * rtl.h: Remove the prototype for
7407         initialize_uninitialized_subregs.
7408
7409         * function.c (instantiate_virtual_regs): Make it static.
7410         * function.h: Remove the prototype for
7411         instantiate_virtual_regs.
7412
7413         * regmove.c (regmove_optimize, combine_stack_adjustments):
7414         Make them static.
7415         * rtl.h: Remove the prototypes for regmove_optimize and
7416         combine_stack_adjustments.
7417
7418 2006-01-17  Roger Sayle  <roger@eyesopen.com>
7419
7420         * config/i386/i386.c (COSTS_N_BYTES): New macro.
7421         (size_cost): Encode costs in bytes so that a reg-reg addition is
7422         equivalent to COSTS_N_INSNS(1).
7423         (override_options): Use the size_cost.branch_cost as the default
7424         ix86_branch_cost when optimizing for size.
7425
7426 2006-01-18  Ben Elliston  <bje@au.ibm.com>
7427
7428         * Makefile.in (D32PBIT_FUNCS): New.
7429         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
7430         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
7431         D64PBIT_FUNCS and D128PBIT_FUNCS.
7432         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
7433         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
7434         D128PBIT are set.
7435         (decnumber_dep): Define.
7436         * doc/libgcc.texi (Decimal float library routines): New node.
7437         * config/dfp-bit.h, config/dfp-bit.c: New files.
7438
7439 2006-01-18  Ben Elliston  <bje@au.ibm.com>
7440
7441         * expr.c (emit_move_change_mode): Always adjust addresses, not
7442         just during reload.  Copy replacements only during reload.
7443         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
7444         emit_move_via_integer.
7445
7446 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
7447
7448         * Makefile.in (check-%, check-consistency): Use $${srcdir}
7449         instead of $(srcdir) and ${srcdir}.
7450
7451 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
7452
7453         PR target/592
7454         PR middle-end/11135
7455         * arm.h (struct machine_function): Add pic_reg.
7456         * arm.c (arm_pic_register): Make unsigned.
7457         (arm_override_options): Only set arm_pic_register if
7458         TARGET_SINGLE_PIC_BASE.
7459         (use_return_insn): Only test for a pic register if it is fixed.
7460         (arm_compute_save_reg0_reg12_mask): Likewise.
7461         (thumb_compute_save_reg_mask): Likewise.
7462         (legitimate_pic_operand): Factor out some known invariants.
7463         (legitimize_pic_address): If we don't have a fixed pic register,
7464         then set up a pseudo in the function entry sequence.  Handle the
7465         pic base being in a pseudo.
7466         (arm_load_pic_register): Handle the pic register being in a pseudo.
7467         (arm_expand_prologue): Only set up the pic register if it is fixed.
7468         (thumb_expand_prologue): Likewise.
7469         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
7470         (pic_load_addr_based_insn): Likewise.
7471         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
7472         fixed.
7473
7474 2006-01-18  Ben Elliston  <bje@au.ibm.com>
7475
7476         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
7477         decimal float modes for all floating point registers.
7478
7479         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
7480         match_code "mem" with match_test "macho_lo_sum_memory_operand".
7481
7482 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
7483
7484         PR c/25682
7485         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
7486         even when the pointer is not NULL.
7487
7488 2006-01-16  Ian Lance Taylor  <ian@airs.com>
7489
7490         * common.opt (ftoplevel-reorder): New option.
7491         * cgraph.c (cgraph_asm_nodes): New global variable.
7492         (cgraph_asm_last_node): New static variable.
7493         (cgraph_order): New global variable.
7494         (cgraph_create_node): Set new order field.
7495         (cgraph_varpool_node): Likewise.
7496         (decide_is_variable_needed): Return true if not
7497         flag_toplevel_reorder.
7498         (cgraph_add_asm_node): New function.
7499         * cgraph.h (struct cgraph_node): Add order field.
7500         (struct cgraph_varpool_node): Add order field.
7501         (struct cgraph_asm_node): Define.
7502         (cgraph_asm_nodes, cgraph_order): Declare.
7503         (cgraph_add_asm_node): Declare.
7504         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
7505         function.
7506         (cgraph_varpool_assemble_pending_decls): Call it.
7507         (cgraph_output_pending_asms): New static function.
7508         (cgraph_finalize_compilation_unit): Call it.
7509         (struct cgraph_order_sort): Define.
7510         (cgraph_output_in_order): New static function.
7511         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
7512         !flag_toplevel_reorder case.
7513         * c-parser.c: Include "cgraph.h".
7514         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
7515         assemble_asm.
7516         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
7517         than -fno-unit-at-a-time.
7518         * doc/invoke.texi (Option Summary): Mention
7519         -fno-toplevel-reorder.
7520         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
7521         -funit-at-a-time documentation.
7522
7523 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
7524             Kazu Hirata  <kazu@codesourcery.com>
7525
7526         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
7527
7528 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
7529
7530         * Makefile.in (FUNCTION_H): New.  Use it instead of
7531         function.h throughout the file.
7532         * function.h: Include tree.h.
7533
7534 2006-01-17  Ben Elliston  <bje@au.ibm.com>
7535
7536         * recog.c: Separate some functions with whitespace.
7537
7538 2006-01-16  Richard Henderson  <rth@redhat.com>
7539
7540         Merge from gomp branch:
7541         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
7542         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
7543         and rename from struct inline_data.  Rename callee* to dst*;
7544         caller* to src*; add copy_decl hook, transform_call_graph_edges,
7545         transform_new_cfg, transform_return_to_modify, and
7546         transform_lang_insert_block flags; remove cloning_p, versioning_p,
7547         update_clones_p.
7548         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
7549         (copy_decl_for_dup): Remove.
7550         * tree-inline.c (struct inline_data): Move to header.
7551         (insert_decl_map): Export.
7552         (remap_decl): Update for member name changes.  Use copy_decl hook.
7553         Allow for replacement to be a non-decl.  Remove dead code.
7554         (remap_type_1): Check for existing mapping.
7555         (remap_type): Export.
7556         (remap_decls): Update for member name changes.
7557         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
7558         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
7559         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
7560         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
7561         (tree_function_versioning, build_duplicate_type): Likewise.
7562         (copy_body_r): Likewise.  Export.
7563         (copy_decl_for_dup): Split into ...
7564         (copy_decl_for_dup_finish, copy_decl_to_var,
7565         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
7566         (replace_ref_tree, inlining_p): Remove.
7567
7568 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7569
7570         * ifcvt.c (if_convert): Make it static.
7571         * rtl.h: Remove the prototype for if_convert.
7572
7573         * local-alloc.c (local_alloc): Make it static.
7574         * rtl.h: Remove the prototype for local_alloc.
7575
7576         * loop.c (loop_optimize): Make it static.
7577         * cfgloop.h: Remove the prototype for loop_optimize.
7578         * rtl.h: Likewise.
7579
7580 2006-01-16  DJ Delorie  <dj@redhat.com>
7581
7582         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
7583         mems.
7584
7585 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7586
7587         * pa.md: Disparage copies between general and floating-point registers
7588         in 32-bit move patterns.
7589
7590 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
7591
7592         PR testsuite/25741
7593         * Makefile.in (check-%): Depend on site.exp instead of
7594         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
7595         directories.
7596
7597 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7598
7599         * global.c (global_alloc): Make it static.
7600         * rtl.h: Remove the prototype for global_alloc.
7601
7602 2006-01-16  Richard Guenther  <rguenther@suse.de>
7603
7604         * tree-ssa-alias.c (struct used_part): Add write_only field.
7605         (get_or_create_used_part_for): Initialize it to true.
7606         (create_overlap_variables_for): Don't create structure variables
7607         for structures that only are written to.
7608         (find_used_portions): Handle MODIFY_EXPR to track whether a
7609         structure is only written to.
7610
7611 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7612
7613         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
7614         static.
7615         * basic-block.h: Remove the prototype for
7616         partition_hot_cold_basic_blocks.
7617
7618 2006-01-16  Rafael Ãvila de EspÃï¿½ndola <rafael.espindola@gmail.com>
7619
7620         * cppspec.c (lang_specific_spec_functions): Remove.
7621         * gcc.c (lookup_spec_function): Use static_spec_functions directly.
7622         * gcc.h (lang_specific_spec_functions): Remove.
7623         * gccspec.c (lang_specific_spec_functions): Remove.
7624
7625 2006-01-16  Paolo Bonzini  <bonzini@gnu.org>
7626
7627         * combine.c (record_value_for_reg): Invalidate registers
7628         if INSN is null.
7629         (record_dead_and_set_regs_1): Likewise, by passing them to
7630         record_value_for_reg.
7631         (record_dead_and_set_regs): Invalidate stores made by a
7632         call.  We do not combine across a call, but we still
7633         relied on equivalences.
7634
7635 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7636
7637         * tree-vrp.c (extract_range_from_binary_expr): Cope with
7638         vrp_int_const_binop returning non-constant nodes.
7639
7640 2006-01-16  Paul Brook  <paul@codesourcery.com>
7641
7642         * config/m68k/m68k.c (output_move_const_into_data_reg):
7643         Output correct mnemonic for mvz and mvs.
7644
7645 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
7646
7647         * rtl-factoring.c: Add sequence abstraction algorithm.
7648         * cfgcleanup.c (outgoing_edges_match): Extra checks.
7649         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
7650         ABNORMAL edges.
7651         (block_has_preserve_label): New function.
7652         * common.opt: Register new pass.
7653         * Makefile.in: Ditto.
7654         * passes.c: Ditto.
7655         * timevar.def: Ditto.
7656         * tree-pass.h: Ditto.
7657         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
7658         * rtl.h (make_jump_insn_raw): Add forward decl.
7659         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
7660
7661 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
7662             Roger Sayle  <roger@eyesopen.com>
7663
7664         * fold-const.c (fold_minmax): New static function.
7665         (fold_binary) <MIN_EXPR>: Call it.
7666         <MAX_EXPR>: Likewise.
7667         * stor-layout.c (place_field): Use DECL_SIZE consistently
7668         in the computation of the new record size.
7669
7670 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
7671
7672         * cse.c (cse_condition_code_reg): Make it static.
7673         * rtl.h: Remove the prototype for cse_condition_code_reg.
7674
7675         * combine.c (combine_instructions): Make it static.
7676         * rtl.h: Remove the prototype for combine_instructions.
7677
7678 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
7679
7680         PR target/25168
7681         * tree.c (get_file_function_name_long): Concatenate the first global
7682         object name with a string derived from the input filename of the object
7683         for type "F".
7684
7685 2006-01-16  Ben Elliston  <bje@au.ibm.com>
7686
7687         * config/i386/winnt-stubs.c: Update FSF address.
7688         * config/xtensa/ieee754-df.S: Ditto.
7689         * config/xtensa/ieee754-sf.S: Ditto.
7690
7691 2006-01-14  Ian Lance Taylor  <ian@airs.com>
7692
7693         * ifcvt.c (noce_init_if_info): New static function, broken out of
7694         noce_process_if_block.
7695         (noce_process_if_block): Call noce_init_if_info.
7696         (check_cond_move_block): New static function.
7697         (cond_move_process_if_block): New static function.
7698         (process_if_block): Call cond_move_process_if_block.
7699
7700 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
7701
7702         * cselib.c (hash_table): Rename to cselib_hash_table.
7703         (cselib_clear_table, discard_useless_values,
7704         remove_useless_values, cselib_lookup_mem, cselib_lookup,
7705         cselib_init, cselib_finish): Adjust uses of hash_table.
7706
7707 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
7708
7709         PR tree-optimization/25485
7710         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
7711         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
7712         is known to be false and true, respectively.
7713
7714 2006-01-14  Richard Guenther  <rguenther@suse.de>
7715
7716         PR tree-optimization/22548
7717         PR tree-optimization/22555
7718         PR tree-optimization/22501
7719         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
7720         * params.def (salias-max-array-elements): New parameter.
7721         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
7722         * doc/invoke.texi (salias-max-array-elements): Document.
7723         * tree-flow-inline.h (var_can_have_subvars): We also handle
7724         arrays now.
7725         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
7726         COMPONENT_REF.
7727         * tree-ssa-structalias.c (params.h): Include.
7728         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
7729         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
7730         (get_constraint_for): For ADDR_EXPR operating on something
7731         containing an ARRAY_REF, add all subvars to the solution.
7732         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
7733         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
7734         for creating MUST_DEFs.
7735         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
7736
7737 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
7738
7739         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
7740         functions.
7741         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
7742         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
7743         number_of_iterations_le): New functions.
7744         (number_of_iterations_special): Removed.
7745         (number_of_iterations_exit): Do not use number_of_iterations_special.
7746         * tree.c (unsigned_type_for): Always return integer type.
7747
7748 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
7749         Richard Guenther  <rguenther@suse.de>
7750
7751         PR rtl-optimization/24257
7752         * gcse.c (find_moveable_store): Only consider a store movable
7753         when the SET_SRC of the insn can be assigned to a register.
7754
7755 2006-01-14  Ian Lance Taylor  <ian@airs.com>
7756
7757         * tree.c (tree_not_class_check_failed): New function.
7758         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
7759         (tree_not_class_check_failed): Declare.
7760
7761 2006-01-13  Ian Lance Taylor  <ian@airs.com>
7762
7763         * reload1.c (do_output_reload): Add assertion rejecting a
7764         CALL_INSN.
7765
7766 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
7767
7768         * combine.c (struct reg_stat): Add new fields truncation_label and
7769         truncated_to_mode.
7770         (record_value_for_reg): Reset truncated_to_mode.
7771         (record_truncated_value): New function.
7772         (check_promoted_subreg): Call it.  Rename to check_conversions.
7773         (combine_instructions): Rename check_promoted_subreg to
7774         check_conversions.
7775         (reg_truncated_to_mode): New function.
7776         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
7777         (gen_lowpart_or_truncate): New function.
7778         (force_to_mode): Use it instead of gen_lowpart.
7779
7780 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
7781
7782         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
7783         VAR is a tag, not its type tag.
7784
7785 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
7786
7787         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
7788         alternatives to match style of other entries.
7789         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
7790
7791 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
7792
7793         PR tree-optimization/25771
7794         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
7795         SSA_NAMES.
7796
7797 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
7798
7799         PR tree-opt/24365
7800         * tree-inline.c (declare_return_variable): If the return variable
7801         was marked as a non gimple complex, set the return slot variable
7802         to be a non gimple comple variable.
7803
7804 2006-01-13  Richard Guenther  <rguenther@suse.de>
7805
7806         * builtins.c (expand_builtin_sincos): New function.
7807         (expand_builtin_mathfn_3): Remove dead code, sin and cos
7808         do not set errno.
7809         (expand_builtin): Expand sincos using expand_builtin_sincos.
7810
7811 2006-01-12  DJ Delorie  <dj@redhat.com>
7812
7813         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
7814         shift counts, separate SI shifts for m32c vs m16c, pass shift type
7815         so that constant shifts can be split.
7816         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
7817         (m32c_valid_pointer_mode): Make static.
7818         (shift_gen_func_for): New.
7819         (m32c_prepare_shift): Use it.  Split large const shifts into
7820         multiple shifts.
7821         * config/m32c/predicates.md (shiftcount_operand): Allow more
7822         general operands.
7823         (longshiftcount_operand): New.
7824         * doc/md.texi (Machine Constraints): Document In6.
7825
7826 2006-01-13  Ben Elliston  <bje@au.ibm.com>
7827
7828         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
7829         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
7830         documentation.
7831
7832 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
7833
7834         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
7835         to try to avoid clobbering pieces of structures when we know
7836         something about the whole structure.
7837         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
7838
7839 2006-01-13  Ben Elliston  <bje@au.ibm.com>
7840
7841         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
7842         return in memory, as this is no limitation is no longer present.
7843
7844 2006-01-12  DJ Delorie  <dj@redhat.com>
7845
7846         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
7847         mova with fb, and for fb+0 -> An.
7848
7849         * config/m32c/mov.md (peephole2): Fix enabling logic.
7850
7851         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
7852         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
7853         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
7854         FINI_ARRAY_SECTION_ASM_OP): Define.
7855
7856         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
7857         variable.
7858         (m32c_legitimize_reload_address): New logic to reload FB to An.
7859         (m32c_output_reg_push): Add newline.
7860         (m32c_output_reg_pop): Likewise.
7861
7862 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
7863
7864         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
7865
7866 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
7867
7868         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
7869
7870 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
7871
7872         * config/sh/predicates.md (sh_rep_vec): Add parallel to
7873         match_code.
7874
7875 2006-01-11  Ben Elliston  <bje@au.ibm.com>
7876
7877         * rtlanal.c (find_reg_note): Assert insn is not null.
7878
7879 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
7880
7881         * df-scan.c (df_hard_reg_init): Move declaration of i outside
7882         ifdef.
7883
7884 2006-01-11  Jeff Law  <law@redhat.com>
7885
7886         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
7887         hold edge pairs.
7888         (mark_threaded_blocks, register_jump_thread): New functions.
7889         (thread_through_all_blocks): Remove unwanted argument.  No
7890         longer rely on e->aux to communicate thread target info.
7891         Call mark_threaded_blocks.  Release the threaded_blocks
7892         bitmap and threaded_edges vector when complete.
7893         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
7894         (threaded_blocks): Remove.
7895         (tree_ssa_dominator_optimize): Remove initialization and
7896         finalization of threaded_blocks.  Simplify call to
7897         thread_through_all_blocks.
7898         (thread_across_edge): Call register_jump_thread rather than
7899         storing thread information into e->aux.
7900         (free_all_edge_infos): Simplify now that e->aux is no longer
7901         used to communicate with thread_through_all_blocks.
7902         * tree-flow.h (thread_through_all_blocks): Update prototype.
7903         (register_jump_thread): Prototype.
7904
7905 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
7906
7907         * df-core.c (df_compact_blocks, df_bb_replace): Use
7908         SET_BASIC_BLOCK instead of BASIC_BLOCK.
7909
7910 2006-01-11  Richard Guenther  <rguenther@suse.de>
7911
7912         PR tree-optimization/25734
7913         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
7914         stop propagation after successful propagation to the LHS.
7915
7916 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
7917
7918         * basic-block.h (control_flow_graph): Change the type of
7919         x_basic_block_info to VEC(basic_block,gc) *.
7920         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
7921         basic_block_info.
7922         (SET_BASIC_BLOCK): New.
7923         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
7924         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
7925         * cfgbuild.c (find_basic_blocks): Likewise.
7926         * cfglayout.c (fixup_reorder_chain): Likewise.
7927         * cfgrtl.c (create_basic_block_structure,
7928         rtl_create_basic_block): Likewise.
7929         * ifcvt.c (find_if_case_1): Likewise.
7930         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
7931         Likewise.
7932
7933 2006-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
7934
7935         * Makefile.in: Removed rotted odf.c entry.
7936
7937 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
7938
7939         PR target/25706
7940         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
7941         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
7942         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
7943         output pattern modifier, not %e.
7944         * config/cris/cris.c (cris_op_str): Update comment about pattern
7945         modifier.
7946         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
7947         before falling through into...
7948         <case 'E'>: Redefined from old 'e' case.
7949
7950 2006-01-11  Jan Hubicka  <jh@suse.cz>
7951
7952         PR target/25042
7953         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
7954
7955 2006-01-11  Jan Hubicka  <jh@suse.cz>
7956
7957         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
7958         * i386.c (x86_decompose_lea): Kill.
7959         (ix86_rtx_costs): Kill.
7960
7961 2006-01-11  Jan Hubicka  <jh@suse.cz>
7962
7963         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
7964         * cgraph.h (cgraph_node): Add inline_decl.
7965         (cgraph_insert_node_to_hashtable): Declare.
7966         (save_inline_function_body): Declare.
7967         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
7968         clones.
7969         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
7970         (cgraph_function_versioning): Update call of tree_function_versioning.
7971         (save_inline_function_body): New function.
7972         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
7973         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
7974         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
7975         (cgraph_default_inline_p): Likewise.
7976         (cgraph_decide_inlining_incrementally): Likewise.
7977         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
7978         (copy_bb): Kill saving; do updating of clones.
7979         (copy_cfg_body): Kill saving.
7980         (initialize_inlined-parameters): Likewise.
7981         (expand_call_inline): Likewise.
7982         (save_body): Kill.
7983         (tree_function_versioning): New parameter "update_clones".
7984         (inlining_p): Kill saving.
7985         * tree-inline.h (tree_function_versioning): Update prototype.
7986         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
7987         saving.
7988
7989 2006-01-11  Ian Lance Taylor <ian@airs.com>
7990
7991         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
7992         Allow undoing set of machine mode.
7993         (do_SUBST): Use enums instead of is_int.
7994         (do_SUBST_MODE): New function.
7995         (SUBST_MODE): New macro.
7996         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
7997         reg and trying to replace reg_regno_rtx with a new register.
7998         (undo_all): Use new enums, handle undoing a PUT_MODE change.
7999         (simplify_set): Use SUBST_MODE.
8000         (distribute_notes): Remove code that tried to update reg notes
8001         for regno_reg_rtx changes.
8002
8003 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
8004
8005         PR tree-optimization/23109
8006         PR tree-optimization/23948
8007         PR tree-optimization/24123
8008
8009         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
8010         * tree-cfg.c (single_noncomplex_succ): New.
8011         * tree-flow.h (single_noncomplex_succ): Declare it.
8012         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
8013         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
8014         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
8015         insert_bb, register_division_in, insert_reciprocals,
8016         replace_reciprocal, free_bb): New.
8017         (execute_cse_reciprocals_1): Rewritten.
8018         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
8019         Do not commit any edge insertion.  Always compute dominators and
8020         create the allocation pool.
8021         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
8022         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
8023         * targhooks.c (default_min_divistions_for_recip_mul): New.
8024         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
8025         * passes.c (init_optimization_passes): Run recip after tree loop
8026         optimizations.
8027         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
8028
8029 2006-01-11  Danny Berlin <dberlin@dberlin.org>
8030             Kenneth Zadeck <zadeck@naturalbridge.com>
8031
8032         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
8033         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
8034         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
8035         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
8036         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
8037         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
8038         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
8039         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
8040         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
8041         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
8042         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
8043         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
8044         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
8045         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
8046         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
8047         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
8048         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
8049         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
8050         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
8051         DF_SCAN_POST_ALLOC): New macros.
8052         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
8053         df_free_bb_function, df_local_compute_function, df_init_function,
8054         df_dataflow_function, df_confluence_function_0,
8055         df_confluence_function_n, df_transfer_function,
8056         df_finalizer_function, df_free_function, df_dump_problem_function,
8057         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
8058         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
8059         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
8060         df_urec_bb_info, ) New types.
8061         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
8062         variables.
8063         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
8064         df_analyze_simple_change_some_blocks,
8065         df_analyze_simple_change_one_block, df_compact_blocks,
8066         df_bb_replace, df_bb_regno_last_use_find,
8067         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
8068         df_insn_regno_def_p, df_find_def, df_find_use,
8069         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
8070         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
8071         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
8072         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
8073         debug_df_chain, df_get_dependent_problem, df_chain_create,
8074         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
8075         df_grow_bb_info, df_chain_dump, df_print_bb_index,
8076         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
8077         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
8078         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
8079         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
8080         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
8081         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
8082         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
8083         df_ref_remove, df_insn_refs_delete, df_refs_delete,
8084         df_reorganize_refs, df_set_state, df_hard_reg_init,
8085         df_read_modify_subreg_p) New public functions.
8086         * df-core.c: The core dataflow solver and glue routines for rtl
8087         dataflow.
8088         (df_init, df_add_problem, df_set_blocks, df_finish,
8089         df_hybrid_search_forward, df_hybrid_search_backward,
8090         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
8091         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
8092         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
8093         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
8094         df_reg_defined, df_find_use, df_reg_used, df_dump,
8095         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
8096         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
8097         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
8098         debug_df_useno, reset_df_after_reload): New functions.
8099         * df-scan.c: The scanning fuctions, once in df.c, completely
8100         rewritten so that they now fully model the functionality of
8101         register usage at the backend.
8102         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
8103         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
8104         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
8105         df_grow_insn_info, df_rescan_blocks, df_ref_create,
8106         df_get_artificial_defs, df_get_artificial_uses,
8107         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
8108         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
8109         df_refs_delete, df_reorganize_refs, df_set_state,
8110         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
8111         df_def_record_1, df_defs_record, df_uses_record,
8112         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
8113         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
8114         df_record_exit_block_uses, df_hard_reg_init): New functions.
8115
8116         * df-problems.c: Seven concrete dataflow problems that use the
8117         scanning in df-scan.c and are solved by the engine in df-core.c.
8118         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
8119         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
8120         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
8121         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
8122         df_ru_free_bb_info, df_ru_alloc,
8123         df_ru_bb_local_compute_process_def,
8124         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
8125         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
8126         df_ru_transfer_function, df_ru_free, df_ru_dump,
8127         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
8128         df_rd_free_bb_info, df_rd_alloc,
8129         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
8130         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
8131         df_rd_transfer_function, df_rd_free, df_rd_dump,
8132         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
8133         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
8134         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
8135         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
8136         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
8137         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
8138         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
8139         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
8140         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
8141         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
8142         df_urec_mark_reg_change, df_urec_check_earlyclobber,
8143         df_urec_mark_reg_use_for_earlyclobber,
8144         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
8145         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
8146         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
8147         df_urec_dump, df_urec_add_problem, df_chain_alloc,
8148         df_chain_create_bb_process_use, df_chain_create_bb,
8149         df_chain_finalize, df_chain_free, df_chains_dump,
8150         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
8151         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
8152         df_reg_lifetime): New functions.
8153         * df.c: Deleted file.
8154         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
8155         consistent with new df api.
8156         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
8157         rest_of_handle_sms): Ditto.
8158         * web.c (unionfind_union, union_defs, entry_register, web_main):
8159         Ditto.
8160         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
8161         invariant_expr_equal_p, find_defs, check_dependencies,
8162         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
8163         free_inv_motion_data, move_loop_invariants): Ditto.
8164         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c):
8165         Update dependencies.
8166         (odf.c): Added defective entry that was deleted later in day.
8167         * sched-deps.c (sched_analyze_1): Ditto.
8168
8169 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
8170
8171         * tree-ssa-operands.c (get_expr_operands): Record addressable
8172         variables directly.  Do not call add_stmt_operands for CONST_DECLs
8173         and ARRAY_DECLs.
8174         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
8175         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
8176
8177 2006-01-11  Ben Elliston  <bje@au.ibm.com>
8178
8179         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
8180         function returns true in the positive case.
8181
8182 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
8183
8184         PR target/20754
8185         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
8186         for SI, DI, SF and DF modes.  Add alternatives to copy between
8187         general and floating point registers to the 32-bit patterns.
8188         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
8189         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
8190         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
8191         generating 64-bit code.
8192         * config/pa/pa.c (output_move_double): Handle copies between general
8193         and floating registers.
8194
8195 2006-01-10  Stuart Hastings  <stuart@apple.com>
8196
8197         * config/i386/i386.md (set_got): Update.
8198         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
8199         (builtin_setjmp_receiver): Mach-O support.
8200         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
8201         (GOT_SYMBOL_NAME): Define.
8202         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
8203         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
8204         * config/i386/i386.c (override_options): Revise for Darwin.
8205         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
8206         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
8207         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
8208         * config/i386/i386-protos.h (output_set_got): Likewise.
8209         * config/darwin.c (machopic_legitimize_pic_address): Update
8210         regs_ever_live[].
8211
8212 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
8213
8214         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
8215         when MODE isn't BLKmode.
8216
8217 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
8218
8219         PR rtl-optimization/25367
8220         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
8221
8222 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
8223
8224         PR target/25718
8225         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
8226         for a negative bound.
8227
8228 2006-01-10  Richard Guenther  <rguenther@suse.de>
8229
8230         * tree-ssa-structalias.c (get_constraint_for_component_ref):
8231         Never override with anything constraint.
8232
8233 2006-01-10  Jan Beulich  <jbeulich@novell.com>
8234
8235         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
8236         256 bits when optimize_size.
8237
8238 2006-01-10  Jan Beulich  <jbeulich@novell.com>
8239
8240         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
8241         MASK_ALIGN_DOUBLE.
8242         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
8243         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
8244         arguments.
8245
8246 2006-01-10  Ben Elliston  <bje@au.ibm.com>
8247
8248         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
8249         float modes.
8250         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
8251         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
8252         (USE_FP_FOR_ARG): Reject decimal float modes.
8253         (function_arg_advance): Likewise.
8254         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
8255         (rs6000_handle_altivec_attribute): Do not permit decimal floating
8256         point types in AltiVec vectors.
8257         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
8258         (rs6000_libcall_value): Likewise.
8259
8260 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
8261
8262         * config/xtensa/ieee754-df.S: New file.
8263         * config/xtensa/ieee754-sf.S: New file.
8264         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
8265         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
8266         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
8267
8268 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
8269
8270         * config/sh/predicates.md (binary_float_operator,
8271         binary_logical_operator, commutative_float_operator,
8272         equality_comparison_operator, greater_comparison_operator,
8273         less_comparison_operator, logical_operator,
8274         noncommutative_float_operator, shift_operator,
8275         symbol_ref_operand, unary_float_operator): Remove redundant
8276         conditionals.
8277
8278 2006-01-09  Jeff Law  <law@redhat.com>
8279
8280         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
8281         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
8282         now unused arguments.  Callers updated.
8283         (eliminate_redundant_computations): Remove now unused arguments,
8284         callers updated.
8285         (local_fold): Remove, no longer used.
8286         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
8287         and moved to...
8288         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
8289         (simplify_cond): New function.
8290         (forward_propagate_into_cond): Call simplify_cond.
8291
8292 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
8293
8294         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
8295         (*vec_extractv2di_1_sse): New.
8296
8297 2006-01-09  Ben Elliston  <bje@au.ibm.com>
8298
8299         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
8300
8301 2006-01-08  Richard Guenther  <rguenther@suse.de>
8302
8303         * tree-ssa-structalias.c (get_constraint_for): Remove
8304         anyoffset argument.
8305         (get_constraint_for_component_ref): Likewise.
8306         (do_deref): Likewise.
8307         (get_constraint_for): Likewise.
8308         (do_structure_copy): Likewise.
8309         (handle_ptr_arith): Likewise.
8310         (find_func_aliases): Likewise.  Remove unused need_anyoffset
8311         variable.
8312
8313 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
8314             Kaz Kojima  <kkojima@gcc.gnu.org>
8315
8316         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
8317         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
8318         (EXTRA_CONSTRAINT_C16): Remove.
8319         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
8320         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
8321         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
8322         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
8323         constants of SHmedia.  Handle nested constant expressions of
8324         SHmedia correctly.
8325         (andcosts): Fix the costs for SHmedia constants.
8326         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
8327         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
8328         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
8329         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
8330         (movv4hi_i, movv2si_i): Likewise.
8331         (movsi_const): Adjust the second operand of ior so to match with
8332         the Csu constraint.
8333         (movdi_const, movdi_const_32bit): Likewise.
8334         (movdi_const_16bit+1): Don't sign-extend LOW.
8335         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
8336         step.
8337         (*double_shori): Fix the split condition.  Use GEN_INT instead
8338         of get_int_mode calls.  Mask lower 16-bit of the argument of
8339         the last GEN_INT.
8340         (sym2GOTPLT): Remove.
8341         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
8342         gen_rtx_UNSPEC.
8343         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
8344         instead of EXTRA_CONSTRAINT_C16.
8345
8346 2006-01-07  Ian Lance Taylor  <ian@airs.com>
8347             David Edelsohn  <edelsohn@gnu.org>
8348
8349         PR rtl-optimization/25662
8350         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
8351         for constant operands instead of simplify_gen_binary.
8352         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
8353         after trying simplify_binary_operation
8354
8355 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
8356
8357         * tree.c (iterative_hash_expr): Hash decls based on UID.
8358
8359 2006-01-06  Eric Christopher  <echristo@apple.com>
8360
8361         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
8362         (TARGET_UNWIND_EMIT): Fix spelling.
8363         * target.h (gcc_target): Add except_table_label.
8364         * except.c (output_function_exception_table): Use.
8365         * varasm.c (default_emit_except_table_label): New.
8366         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
8367         define.
8368         (asm_out): Add here.
8369         * output.h (default_emit_except_table_label): Prototype.
8370         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
8371         * config/darwin.c (darwin_emit_except_table_label): Define.
8372         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
8373
8374 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
8375
8376         PR tree-optimization/18527
8377         * tree-ssa-loop-niter.c (number_of_iterations_cond,
8378         number_of_iterations_special, number_of_iterations_exit):
8379         Move base and step of an iv to a single structure.  Add
8380         no_overflow flag, and use it in # of iterations analysis.
8381         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
8382         folded_casts argument.
8383         (simple_iv): Pass base and step in a structure.  Set no_overflow
8384         flag.
8385         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
8386         Evaluate expensiveness of computing # of iterations instead of
8387         the final expression.
8388         * tree-scalar-evolution.h (affine_iv): New structure.
8389         (simple_iv): Declaration changed.
8390         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
8391         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
8392         find_givs_in_stmt): Changed due to simple_iv change.
8393
8394 2006-01-06  Jeff Law  <law@redhat.com>
8395
8396         PR ada/24994
8397         * tree-cfg.c (bsi_replace): Rename final argument from
8398         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
8399         change (stmt -> orig_stmt).
8400         * tree-eh.c (verify_eh_throw_stmt_node): New function.
8401         (bsi_remove): Add new argument.  Remove EH information
8402         if requested.
8403         (verify_eh_throw_table_statements): New function.
8404         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
8405         updated.
8406         * tree-optimize.c (execute_free_cfg_annotations): Verify
8407         the EH throw statement table after removing annotations.
8408         * except.h (verify_eh_throw_table_statements): Prototype.
8409         * tree-flow.h (bsi_remove): Update prototype.
8410         * tree-vrp.c (remove_range_assertions): Add new argument to
8411         bsi_remove call.
8412         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
8413         * tree-complex.c (expand_complex_div_wide): Likewise.
8414         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
8415         * tree-tailcall.c (eliminate_tailcall): Likewise.
8416         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
8417         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
8418         * tree-nrv.c (tree_nrv): Likewise.
8419         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
8420         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
8421         (combine_blocks): Likewise.
8422         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
8423         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
8424         (cleanup_control_flow): Likewise.
8425         (remove_forwarder_block): Likewise.
8426         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
8427         * tree-sra.c (sra_replace): Likewise.
8428         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
8429         (forward_propagate_single_use_vars): Likewise.
8430         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
8431         * tree-inline.c (expand_call_inline): Likewise.
8432         * tree-vect-transform.c (vect_transform_loop): Likewise.
8433         * tree-outof-ssa.c (rewrite_trees): Likewise.
8434         * tree-cfg.c (make_goto_expr_edges): Likewise.
8435         (cleanup_dead_labels): Likewise.
8436         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
8437         (bsi_move_before, bsi_move_after): Likewise.
8438         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
8439         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
8440
8441 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
8442
8443         PR tree-opt/25528
8444         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
8445         and IMAGPART_EXPR.
8446         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
8447         on non gimple variables.  Also add checks at the top for decls and
8448         mtags.
8449         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
8450         complex types.
8451         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
8452         and IMAGPART_EXPR for creating MUST_DEFs.
8453         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
8454         and NAME_MEMORY_TAG separately from the DECLs.
8455
8456 2006-01-06  Richard Guenther  <rguenther@suse.de>
8457
8458         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
8459         annotation, if necessary.
8460         * tree-ssa-pre.c (create_expression_by_pieces): Remove
8461         redundant calls to update_stmt.
8462         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
8463         Likewise.
8464
8465 2006-01-05  Richard Henderson  <rth@redhat.com>
8466
8467         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
8468
8469 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
8470
8471         * c-typeck.c: Update copyright date.
8472
8473 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
8474
8475         * c-typeck.c (build_c_cast): Always warn when casting
8476         from a pointer to an integer of different size, even if
8477         the node was constant.
8478
8479 2006-01-05  Richard Guenther  <rguenther@suse.de>
8480
8481         PR tree-optimization/22555
8482         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
8483         if one structure field is an array.
8484         * tree-ssa-operands.c (get_expr_operands): Continue scanning
8485         operands even if we found a subvar, but ignore VOPs in this
8486         case.
8487         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
8488         for renaming.
8489         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
8490
8491 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
8492
8493         PR middle-end/24998
8494         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
8495
8496 2006-01-05  Richard Guenther  <rguenther@suse.de>
8497             Diego Novillo  <dnovillo@redhat.com>
8498
8499         * tree-pass.h (TODO_remove_unused_locals): Define.
8500         * gimple-low.c (expand_var_p, remove_useless_vars,
8501         pass_remove_useless_vars): Remove.  Update all users.
8502         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
8503         (remove_unused_locals): New function.
8504         * tree-flow.h (remove_unused_locals): Declare.
8505         * passes.c (execute_todo): Call remove_unused_locals if
8506         TODO_remove_unused_locals is set.
8507         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
8508         * tree-ssa-dce.c (pass_dce): Likewise.
8509         * tree-outof-ssa.c (pass_del_ssa): Likewise.
8510
8511 2006-01-05  Richard Guenther  <rguenther@suse.de>
8512
8513         * tree-flow.h (struct fieldoff): Decompose field to
8514         type, size and decl.
8515         * tree-ssa-alias.c (create_sft): Take type as parameter.
8516         (create_overlap_variables_for): Store type, size and decl
8517         in the fieldoff structure.
8518         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
8519         of struct fieldoff.
8520         (push_fields_onto_fieldstack): Likewise.
8521         (create_variable_info_for): Likewise.  Use offset for the
8522         SFT name if the decl is not available.
8523
8524 2006-01-04  Paul Brook  <paul@codesourcery.com>
8525
8526         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
8527
8528 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
8529
8530         * lambda-code.c (can_put_in_inner_loop): Relax
8531         restrictions.
8532         (can_put_after_inner_loop): New function.
8533         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
8534         (perfect_nestify): Change to make copies and modify uses.
8535
8536 2006-01-04  Richard Henderson  <rth@redhat.com>
8537
8538         Merge from gomp branch:
8539         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
8540         via integer constant.
8541         (pragma_lex): Remove.
8542         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
8543         rather than parsing it.
8544         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
8545         handle_pragma_extern_prefix): Add %< %> quotes.
8546         (registered_pragmas): New.
8547         (c_register_pragma_1): New.
8548         (c_register_pragma): Use it.
8549         (c_register_pragma_with_expansion): Likewise.
8550         (c_invoke_pragma_handler): New.
8551         (init_pragma): Use cpp_register_deferred_pragma directly for
8552         pch_preprocess.
8553         * c-pragma.h (enum pragma_kind): New.
8554         (pragma_handler): New.
8555         (c_invoke_pragma_handler): Declare.
8556         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
8557         CPP_PRAGMA_EOL.
8558         * c-common.h (c_common_pch_pragma): Update decl.
8559         * Makefile.in (c-parser.o): Update dependencies.
8560         (GTFILES): Add c-pragma.h.
8561         * c-parser.c (struct c_token): Add pragma_kind.
8562         (struct c_parser): Add in_pragma.
8563         (c_lex_one_token): Always initialize keyword and pragma_kind.
8564         Extract data for CPP_PRAGMA.
8565         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
8566         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
8567         Don't allow CPP_PRAGMA_EOL if in_pragma.
8568         (c_parser_consume_pragma): New.
8569         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
8570         (c_parser_skip_to_end_of_parameter): Likewise.
8571         (c_parser_skip_to_end_of_block_or_statement): Likewise.
8572         (c_parser_skip_to_pragma_eol): New.
8573         (c_parser_external_declaration): Handle CPP_PRAGMA.
8574         (c_parser_compound_statement_nostart): Likewise.
8575         (c_parser_statement_after_labels): Likewise.
8576         (c_parser_pragma): New.
8577         (pragma_lex): Likewise.
8578         (c_parser_pragma_pch_preprocess): New.
8579         (c_parser_new): Merge into ...
8580         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
8581
8582 2006-01-04  Jeff Law  <law@redhat.com>
8583
8584         PR ada/24994
8585         * tree-cfg.c (bsi_replace): Remove the original statement
8586         from the EH throw statement table.
8587
8588 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
8589
8590         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
8591         make the prototype extern "C" and add throw ().
8592
8593         PR target/25554
8594         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
8595         and pos non-negative and pos + len <= 32.
8596         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
8597         drop pos + len < HOST_BITS_PER_WIDE_INT test.
8598         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
8599
8600         PR c/25559
8601         * c-common.c (handle_vector_size_attribute): Reject zero vector size
8602         as well as sizes not multiple of component size.
8603
8604         PR debug/25562
8605         * function.c (instantiate_expr): New function.
8606         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
8607         walk its DECL_VALUE_EXPR with instantiate_expr.
8608
8609         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
8610         DW_OP_deref{,_size} if address isn't going to be added.
8611
8612 2006-01-04  Ben Elliston  <bje@au.ibm.com>
8613
8614         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
8615         * config/fp-bit.c: Likewise.
8616
8617 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
8618
8619         * dominance.c: Add comment about why we use DFS numbering
8620         of dominance tree.
8621
8622 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
8623             Richard Henderson  <rth@redhat.com>
8624
8625         Merge from gomp-branch:
8626         * varasm.c (assemble_variable): Handle thread-local COMMON data.
8627         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
8628
8629 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
8630
8631         PR rtl-optimization/25578
8632         * combine.c (combine_simplify_rtx, force_to_mode): Don't
8633         pass a parameter to simplify_shift_const if changing ASHIFTRT
8634         to LSHIFTRT.
8635
8636 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
8637
8638         * builtins.c (get_builtin_sync_mem): New function.
8639         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
8640         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
8641         Call get_builtin_sync_mem to generate mem rtx.
8642
8643 2006-01-03  Richard Guenther  <rguenther@suse.de>
8644
8645         PR c/25183
8646         * stmt.c (add_case_node): Make sure to clear overflow flags
8647         from ranges.
8648
8649 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
8650
8651         Merge from gomp-branch.
8652         * config/sparc/sync.md: New file.
8653         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
8654         UNSPECV_LDSTUB): New constants.
8655         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
8656         * config/sparc/predicates.md (memory_reg_operand): New predicate.
8657         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
8658         prototype.
8659
8660 2006-01-03  Roger Sayle  <roger@eyesopen.com>
8661
8662         * combine.c (reg_subword_p): New predicate to test whether the
8663         destination of a set refers to a subword/piece of a register.
8664         (try_combine): Generalize the code to merge the setting of a
8665         pseudo to a constant followed by a set of a subword of that
8666         register to a constant.
8667
8668 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
8669
8670         * basic-block.h (control_flow_graph): Change the type of
8671         x_label_to_block_map to VEC(basic_block,gc) *.
8672         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
8673         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
8674
8675         * tree-ssa-propagate.c (cfg_blocks): Change the type to
8676         VEC(basic_block,heap) *.
8677         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
8678         ssa_prop_fini): Adjust the uses of cfg_blocks.
8679
8680 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
8681
8682         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
8683         COMPONENT_REFs.
8684         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
8685         hashing trees instead of a pointer hash.
8686         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
8687         compare for MEM_EXPR.
8688
8689         PR rtl-optimization/25130
8690         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
8691         when comparing MEMs for GCSE
8692
8693 2006-01-03  Ben Elliston  <bje@au.ibm.com>
8694
8695         * targhooks.h (default_decimal_float_supported_p): Declare.
8696         * targhooks.c (default_decimal_float_supported_p): Define.
8697         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
8698         `default_decimal_float_supported_p'.
8699         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
8700
8701 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
8702
8703         * combine.c (apply_distributive_law <SUBREG>): Check
8704         TRULY_NOOP_TRUNCATION.
8705
8706 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
8707
8708         * dwarf2out.c (have_switched_text_section): Delete.
8709         (have_multiple_function_sections): New.
8710         (have_location_lists): Make 'bool'.
8711         (add_AT_loc_list): Use 'true' not '1'.
8712         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
8713         (output_loc_list): Use have_multiple_function_sections.
8714         (output_ranges): Likewise.
8715         (dwarf2out_begin_function): Set have_multiple_function_sections if
8716         necessary.
8717         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
8718         Check function_section rather than DECL_SECTION_NAME.
8719         (dwarf2out_finish): Use have_multiple_function_sections.
8720         Don't clear have_location_lists.
8721
8722 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
8723             Jan Hubicka  <jh@suse.cz>
8724
8725         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
8726         case of conditional jump jumping to the next instruction.
8727         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
8728         cases of conditional jump jumping to the next instruction.
8729
8730 2006-01-02  Jan Hubicka  <jh@suse.cz>
8731
8732         * i386.c (*_cost): Add COSTS_N_INSNS.
8733         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
8734
8735 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
8736
8737         PR target/25259
8738         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
8739
8740 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
8741
8742         * config/arm/arm.c (all_fpus): Fix comment typo.
8743         * config/darwin.c: Likewise.
8744         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
8745         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
8746         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
8747
8748 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
8749
8750         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
8751         (rs6000_split_compare_and_swapqhi): New.
8752         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
8753         (sync_compare_and_swapqhi_internal): New.
8754         * config/rs6000/rs6000-protos.h: Declare.